For the fuck/marry/kill, but with fandom tropes: Tamora Pierce Tortall verse. Daine, Alanna, Kel.
Fake dating: Daine is great to fakeout makeout with, but I don’t have to share our bed with 50 small animals
Slow-burn: I fell for Kel’s competence years ago, and little suspect that she is also pining for me.
Enemies-to-lovers: In a way, Alanna’s commitment to a cause opposite mine is its own character recommendation