This is the follow up from the Homebrew I posted last month, after reading the feedback I received not only here, but also on D&D Beyond, I made some changes to the subclass. Once Again I hope to receive some feedback to see if this homebrew isn't too Coockoo Overpowered or a letdown. So here it is:

The monks who follow the Way of the Iron Body are masters of physical
endurance and resilience. They train to harden their bodies, turning
their flesh and bones into a living fortress that can withstand even
the strongest blows. In battle, these monks stand firm against their
enemies, trading blows in a relentless contest of strength and
endurance. They are unyielding, unbreakable, and fierce in their
determination to protect their allies and overcome their foes.

So here we are, this is the Flavor I'm going for with this subclass, based on the real-life "Iron Body" monks, that can break a Spear in their Necks and train by bashing heavy and hard objects on their bodies, this subclass is made to try to make the monk less like the Rogue where It attacks and runs away, but give it the ability to actually go to the frontlines and stay there side by side with the Paladin and the Barbarian and not die on the first round of combat after 3 goblins surround you.

Iron Body Technique

When you choose this tradition at 3rd level, you learn how to harness
your ki to improve your defenses and your vitality. Without the need
for armor or shields, you can dodge attacks with ease you also learn
to use your defensive skills as part of your offensive arsenal.
Whenever you use the Patient Defense Feature and are not wearing Armor
or a Shield you gain the following benefits:

• You can make an unarmed strike as part of the same Bonus Action.
• Until your next turn, any critical hit against you becomes a normal hit, as
  you skillfully make the attack miss any vital spots.

You can use the Patient Defense Feature without spending Ki points a number of times
equal to your Wisdom Modifier per short rest.

Also, you can heal yourself better by channeling your ki. Whenever you
regain hit points, you can add one roll of your Martial Arts die to
the amount healed.

I tried to cover one interesting point about "Tanking", a problem probably felt hardest with a Bladesinger for example, that has High AC, but low HP which is kinda similar to this subclass where the HP is not on the Fighter/Paladin/Ranger ballpark, and now having access to dodging on most combat turns effectively increasing your AC to +5, but the problem is, if it is so hard to Hit you, you probably will only be hit by a Critical hit. So in one round, you are feeling Immortal because of your AC and never receive any damage. But then the first thing that hits you, makes you already either dropped to zero or very uncomfortably close to it. Since Monks don't wear armor and then probably will never have access to an Adamantine Armor that negates Critical Hits, I made it part of this subclass, even tho the effects only last for 1 round…

Another interesting thing I added was at level 4 with Tasha's optional features, monks can use 2 Ki points to heal themselves, but is quite expensive for very low healing, so since this is the subclass of a monk that will certainly be getting hit a lot since you will go to the frontlines, I decided to give a small boost to this healing ability so you can self sustain better if necessary, but also be benefited from the generosity of your allies that decide to heal you.

Iron Shirt Stance

At 3rd level, you learn how to use your ki to
fortify your body when you are not wearing armor or wielding a shield
with a stance that grants you enhanced strength and durability for a
short time. As a bonus action on your turn, you can enter the Iron
Shirt Stance, this stance lasts for 1 minute or until you're knocked
unconscious. While in this stance, you have your movement speed
reduced by 10 ft, and you gain the following benefits:

• You have advantage on Strength and Constitution saving throws.
• You can Add your Strenght or your Wisdom Modifier to the damage rolls of your Unarmed strikes.
• While you are in this Stance, bludgeoning, piercing, and slashing damage that you take from
  nonmagical attacks are reduced
  by 2. If you Spend 1 Ki point you can apply this to magical attacks.
  This damage reduction takes place before calculating any resistance,
  temporary hitpoints, and other sources of damage reduction.

This damage reduction increases by 2 when you reach certain levels in this
class, at 8th level (4), 13th level (6), 18th level (8).

You can use the Iron Shirt Stance a number of times equal to your
Wisdom modifier per long rest (minimum of one), Once you have used
this feature that number of times, you can spend 2 ki points to use it
again.

So, picture with me, you are a level 3 monk. On your character Sheet, you have the following features: "Martial Arts", "Unarmored Defense", "Flurry of Blows" every single feature you received up to this point is SCREAMING at you "GO MELEE!!!" Two out of those 3 literally ask you to on your turn, Take your Attack Action, and then spend your Bonus Action to make another Attack!
This feature is inspired by the Barbarian’s Rage feature, but instead of giving resistance to damage, it reduces damage by an fixed amount. This makes it more effective against multiple small attacks, but less effective against single big attacks. It also reduces your speed by 10 feet while active, making you more like a tank than a skirmisher. And also gives an improvement on your damage output so you don't need to stand in front of the enemy praying it goes down before you do, you probably will be capable of dealing with them now.

Defensive Flurry

At 6th level, you learn how to use your reaction to
deflect or reduce damage from melee attacks.

Using your Reaction in response to being damaged by a Melee weapon
attack, you can activate the Defensive Flurry. You subtract from the
damage taken an amount equal to your Wisdom modifier plus one roll of
your Martial Arts die. Until the start of your next turn, you add the
total rolled on your Martial arts Die to your AC, potentially blocking
multiple consecutive attacks. When you successfully use Defensive
Flurry to reduce incoming damage to zero, you can spend 1 Ki point to
immediately make an Unarmed strike against the attacker as part of the
same reaction.

You can use the Defensive Flurry a number of times equal to your
Wisdom Modifier per short rest. Once you used this feature that number
of times, you can spend 1 ki point to use the Defensive Flurry again.

This one in the last version was a mess, so much so that I needed a Box to explain it, now it's basically, Deflect Missiles + Shield, but for Melee weapon attacks only. So much simpler to understand. So The thing is, Monks at Higher Levels, start to become Incredible at Tanking Magical stuff, they gain immunities, Evasion, and Proficiency in all saving throws, but all their early features are hammering their heads to go fight ogres with their bare hands and they just can't really endure those interactions. So those first few Features I focused on trying to improve the survivability of the Monk in Physical combat.

Iron Body, Iron Fist

At 11th level, you can choose from two different
Fighting Stances that enhance your toughness or your offense. You can
enter one of these fighting stances if you're not wearing Armor, or
wielding a shield, as an action and remain in it for 1 minute or until
you lose your concentration (as if you were concentrating on a spell)
until you use this feature again, or until you end it as a bonus
action.

Iron Mountain Technique: You adopt a highly defensive stance, spend 1
to 3 ki points and gain the following benefits:

• You get a +1 bonus to your AC for each ki point spent.
• You gain a number equal to your proficiency bonus in temporary hit points for
  each ki point spent. On The following turns, while you are still using
  the Iron Mountain Technique you can spend 1 to 3 ki points (no action
  required) to replenish the temporary hit points once per round, each
  ki point gives you a number of hit points equal to your Proficiency
  bonus.
• When a creature makes a weapon attack against one of your
  allies, you can use your reaction to move up to half your speed toward
  the attacker. If the attacker is within your reach after this
  movement, you become the target of the attack instead. If you get hit,
  you can spend 1 ki point, to use Deflect Missiles or Defensive Flurry
  as part of the same reaction to block the attack that targets you, if
  it is a ranged Weapon attack, or a Melee weapon attack respectively.

Clashing River Technique: You adopt a very offensive stance, spend 1
to 3 ki points and gain the following benefits:

• You get a -1 penalty to your AC and gain +10ft movement speed for each
  ki point spent.
• You get a +1 bonus to your attack rolls for each ki
  point spent.
• At the start of each of your turns, you can gain
  advantage on a number of attacks equal to the number of ki points
  spent to activate this fighting style. If you hit an unarmed strike or
  a monk weapon on one of these attacks, you deal an extra martial arts
  die of damage for each ki point spent.

If you lose concentration on this feature due to taking damage, you
cannot use it again until a number of rounds equal to the
ki points you spent. During this time, you have disadvantage on
ability checks.

This one was called "Counter Stance" and it was basically you gain Spells to either Give you temp HP and deal damage back when you're attacked, or Make you use some other spell to give you advantage on attack rolls, so instead I went more "Ying Yang" and added two different Fighting Stances, either you go against the flow and disregard your defenses to become a Berserk and do maybe too much damage (I didn't really tried to calculate how much this is compared to A Paladin smiting every turn or something like that so tell me if this is too overboard) But again, at this point, level 11, you already have enough Defensive Features from this subclass and even now the Monk base class, to afford to drop some of your AC and go full Sicko mode! but then, If you really want, or NEED to be Tanky, the other fighting style not only provides you with amazing survivability, but does something I feel like is really missing in D&D, that is Forcing the attacks hit the Tank instead of the squishy characters! So this is basically either you fully commit to the Tank role, or you Say "screw that I want to punch that guy harder than a Gloomstalker First round!" then you can also do that! But hey, tell me if this is too much I probably might have to adjust the bonuses.

Perfect Defense

At 17th level, you master the defensive techniques of
the Iron Body tradition. You can use your ki to protect you from harm
and allows you to share its benefits with others.

• The Iron Shirt Stance no longer reduces your Movement Speed.
• Deflect Missiles and Defensive Flurry can be used against Ranged Spell attacks
  and Melee Spell Attacks respectively.
• You can use your action to spend one ki point and use Stillness of Mind on one creature you
  touch, that is charmed or frightened.
• You can use your ki to shield yourself and your allies from harmful spells and effects. When
  you take no damage from an area effect that allows a Dexterity saving
  throw, thanks to your Evasion feature, you can spend ki points to
  create a safe zone within the area. You create a 5ft radius circle
  around yourself, and for each Ki point spent you increase the radius
  of the circle by 5ft. That circle is unaffected by the area effect
  until the end of your next turn. Also, for each ki point you spend
  this way, your next unarmed strike deals an extra martial arts die of
  damage on a hit.

And this is basically just, "take away all the drawbacks from the Class features, and let's share some of our own resistances with our friends" Maybe this overlaps with Paladins, but at this level Druids will be Destroying Villages with Earthquakes and Stuff like that so I don't think this really is too much… Or is it? Please do tell me!

Once again, this is also on D&D Beyond just like last time!