Twig

Enemy's to lovers. It's a classic but always loved. You can't go wrong with it. It could be like mis interpretation of love for hate, a total puppy character who is not getting the hint that they don't like them (which makes them angrier), or family, race(im thinking like fairys and elves lol), community's, just groups known for hate each other, so like I shoulddd hate you buttt.

God/goddess × mortal lovee this one, I have ocs like this. Strong big woman goddess and little angry gremlin mortal. Another good one is God who doesn't understand human morals so they say and do unhinged things all the time, and mortal is just like omg noo, or wtf. Also like evil God? And sweet lil angel mortal.

Obviously in love × oblivious "I LOVE YOU" "aw your such a good friend" one is head over heels fallen and the other just thinks they are good friends, possibly in denial of gay?

Immortal × time traveler I think I've seen this on pintrest? Time traveler shows up sometime/somewhere and he runs into immortal over and over. Immortal explains what's going on. Time traveler also scientist so very literally thinker