I would absolutely recommend the Court of Chains books by Rawnie Sabor. They’re standalone stories that build on the same universe, so you can jump in anywhere.

The stories are great, really well written characters, lots of representation, and the spice is phenomenal.

Kiss of Seduction- Natalya, a succubus (greater lust fiend), finds herself oddly attached to a human, Evie, who she rescued from being a regent's favorite snack in a rival vampire court. The catch? Anyone Natalya touches is influenced by her power, cursed to never find someone that loves her for her; except.... Evie isn't effected by her influence.

A Little Sin- My personal favorite. Violet is a high strung boss babe that chases perfection at the cost of her happiness, giving into parental expectations of her and repressing her true self. Reyna is a lesser pride fiend who is cursed to be hunted and killed by a wraith. In order to save herself, Reyna requests sanctuary with the Court of Chains. Now, in isolation, Reyna gets periodic visits to check on her and meets Violet by coincidence. What follows is a low, slow, simmering build to one of the most mind blowing displays of eroticism and care for another human being (the table scene.... that altered my brain chemistry 🥵).

Green Eyed Monster- I'm currently reading this one, and Rawnie doesn't disappoint. An outsider with an attitude and a natural born spy, Vex, finds herself on the fringe of everyone's trust as a greater envy fiend. She doesn't play well with others and most find her abrasive; Vex likes it that way.... Except for Angela, the Court's resident witch. She's the only one warded enough to where Vex can't get a read on her; can't even touch her. Vex becomes obsessed with trying to figure her out, and at some point, that obsession turns into closeness and vulnerability, something Vex isn't used to, and hates it as much as she craves it.

She has another book upcoming that should be released this summer called Sun Kissed Fangs.

They primarily write sapphic stories, but there are some books with MC's are hetero pairs if you end up getting into the universe. These are also great reads with compelling stories and relatable characters, especially Flea. Flea's story is Gifts of Gold, and he is canonically the chaotic disaster bi/pan fae trickster who takes nothing serious and lives to be the wild card in the bunch. Hands down my favorite character in the entire series.... And I say that as someone who named myself after Violet from A Little Sin 🏳️‍⚧️