Sc h4047 by twigxcabaret 79599381. Honestly you can infer a ton of their levels as being related to gay things but I think this one makes direct references to transphobia / transgenderism; hence I'm including it even if its not my absolute favourite from them (my fav is probably Unused assets)

tkspl by durianhead 66391574. Really cool minimalist level made by someone who I believe to be a truly important figure regarding experimentation in GD. Also Singaporean :3 Would've included invincible copy since thats gayer but its not a solo

Cnals by Insidee 91873967 / Optifine by Insidee 110015314 I think both of these are pretty underrecognised levels from Insidee and also are very visibly disconnected from the mainstream (especially because Optifine has a bad replacement song and Cnals has literally no replacement song).