AUs can be a bit fandom-specific for me, but in general you can't go wrong with interesting Divergents and Everybody Lives. Time travel fix-its are a favorite for me in Harry Potter and Star Wars, and Crossovers both traditional and fusions are love.

Friends to lovers is one of my favorite tropes, I'm also a kidfic person, and handcuffed together, or forced proximity due to just about anything it pretty great too.