Characters with simmilar chemistry to heated rivalry

Soo, Reading heated rivalry really got me out of my reading rut. I'm so obsessed with the chemistry of Illya and Shane. I'm reading tlg rn, but i want to keep this up and not fall back into not reading again.

So any recs for characters with similar chemistry that i can have ready to read after this. Any couple pairings, gay, queer, straight couples, Doesn't have to be monogamous, Any genre, smut is obviously fine as long as there's plot too.

The only thing that I can think of that's off putting is cheating and non-consentual stuff. Otherwise I'm down for really anything!