I wouldn't say I love other beings, but I like reading about their interaction with the vampires, or just their personal journeys...
The Mortal Istruments is an amazing series. It's not about vampires, its about shadow hunters, but I love how other supernatural beings are sprinkled in.
Mostly, and Kristin is right, Mortal Instruments is a good series.
I am a huge fan of most beings. I will read mostly about Vampires but I also like Immortals, Dragons, Fie, Ghosts and the like. However I really don't like books strictly about werewolves. Can't quite figure out why.