Can anyone help me out with free books?

I know this is a bit of a strange request but I need some stuff for a project I’m working on. I’m looking for teen fantasy books about werewolves, vampires, shapeshifters, immortals, fallen angels, and all sorts of other creatures of the night. If anyone has any books at home that they don’t want I would really appreciate it if you could send them my way. I’m looking for things like the Twilight Saga, House of Night, Night World, The Immortals, and anything else that fits the genre. Please get in touch if you can help: Thanks a lot