Harley Merlin and the Secret Coven

Not sure if this is the right fit?

Consider Dark Lover by J. R. Ward. Recommended by 1 sources.

“Dark Lover reads like a high-heat paranormal romance anchored by a brooding immortal leader who must protect an unexpected ward while settling old scores. Expect intense romantic scenes, an emphasis on protective alpha dynamics, and heavy worldbuilding about vampire hierarchies; the book delivers escapist emotional payoff for readers who like melodrama and mythic stakes. Main limits: recurring exposition about the world’s rules and moments where romance and sentimentality crowd out nuance, so it’s better for readers who want atmosphere over subtle realism.”