I would HIGHLY suggest the Rachel 摩根 或者 Hollows series (same thing, is called both) 由 Kim Harrison. It is not a YA series. Great vampires, great world building. It's about a witch bounty hunter who lives and works in a church with her partners, Ivy-a living vampire, and Jenks a pixie. They encounter all sorts of "Inderlanders" as they are called in the series. Werewolves, banshee's, elves, trolls, and demons. It's set in modern 日 Cincinnati. It is not a paranormal romance series, although it does have some romance, but it's focused on the action and the who-done-it stories along with the growth of the main character, Rachel. Alternatively there are the Bloodsucking Fiends series 由 Christopher Moore which is funny. Also not YA. Hope this helped.