Electrical – all power to one room not working outlets read hot

Your test shows you have hot coming from the breaker (hot to ground 120 volts) but you are loosing it on the neutral side. I would start at the breaker box again only this time looking at (volt meter test) the neutral wire. If it's good go to the first junction box and test there and so on.

Myself, I would probably check the breakers too see if they have output voltage. Be careful. I suspect a bad connection. Check the connections at the GFCI breakers. I have seen poor connections when the push in connectors have been used (I always use the screws). I recommend a non-contact voltage tester. Some like the Klein one from Home Depot are sensitive enough so that it can be used to find a dead wire in a box if you if separate them a little.