Vampire Knight-my fav so far!!
Karin Rosario + Vampire Midnight Secretary Vampire Hunter D Vampire Hunter D: Bloodlust Vampire Princess Miyu Nightwalker Hitsuji no Uta Moon Phase Kimera Trinity Blood
And apperantly there is spouse to be another manga soon to be made in to anime called "vampire kisses", its spouse to be really good.
Vampire knights: About a girl named yuuki who was saved by an evil vampire by her kuran who goes to a school where the night class is full of vampires
Karin: About a family of vampires who's daughter gives blood instead of sucking blood
Rosario+Vampire:A human boy goes to school full of demons, vampires, werewolves, etc
Vampire Hunter D: Blood lust
Vampire Princess Miyu: The vampire princess who is cursed with the fate of sending shinma into the darkness, with her servant larva
Nightwalker:A vampire who dystroys "shadows"
Descendants of darkness: An agency who works on dystroying demons
Dude try Vampire Knight Itz good like a girl named yuuki is the gaurdian of the day class students in a school where even vampires come to study.