@BookLover6473 Lockwood and co. Although it's wayyyy more slow burn-y and the actual 'lovers' part is more... interpretational. It's also a series, not a standalone. the premise is essentially: Ghosts are haunting London and only children can see them. Ghosts can also kill people
Percy jackson: kinda enemies -> friends -> lovers. Another Series.
Six of crows: A duology, magic system, kinda supernatural, check TWs the ones I can remember are: Child sexual assault, sex trafficking, kidnapping, child abuse.