VAMPIRE KNIGHT! Its amazing!!! Main male character is a vampire and its set in a school and the main character is a girl! And its romance shoujo. Perfect. Enjoy! I loved it!
also try Rosario Vampire
the main character is a boy but there are very strong female leads. all the girls are monsters and the guy's a human (*little spoiler* but later on not so much) its a good story and i think youd enjoy it
