I'd like to interact more with the community here, but the thing is, I'm non-binary (completely genderless, they/them/their pronouns or it/its/itself) and I'm too afraid to join one at random, because I'm pretty sure I'd get people jumping down my throat when they find out what I identify as.

Does anyone have any recommendations?

Enigma accepts everyone :) The link is in my signature. We are a smaller cult and accept people who also join other cults as well.

A great cult to join as well (and you can join along with Enigma) is Unique. Although they are not accepting apps right now you can still post in their thread to get to know everyone and see if you would be happy there :)