The Great Old One warlock patron's Create Thrall feature (PHB, page 110) says:
At 14th level, you gain the ability to infect a humanoid’s mind with the alien magic of your patron. You can use your action to touch an incapacitated humanoid. That creature is then charmed by you until a remove curse spell is cast on it, the charmed condition is removed from it, or you use this feature again.
You can communicate telepathically with the charmed creature as long as the two of you are on the same plane of existence.
Can someone please provide an exhaustive list of all the ways in the Player's Handbook to counter this class feature using strictly RAW?
Excellent answers should keep methods of prevention (example, the Oath of Devotion paladin's Aura of Devotion class feature) separate from methods of curing (example, Remove Curse spell or the Monk's Stillness of Mind class feature).
Since Create Thrall does not explicitly mention a saving throw, am I correct in assuming that the target cannot benefit from any ability or feature (racial or otherwise) that grants advantage on saving throws against being charmed, such as Fey Ancestry?