That's a hard one I have so many.

Toradora
Tegami bachi
Gauken Alice
Fruits basket
Vampire knight
Naruto
Btoom
Battle Royale
Seven seeds
Berserk
Horimiya
Digimon
Pokemon
My dress up darling
Blue exorcist
A silent voice
Love at fourteen
Arslan
Demon love spell
Black rose Alice
Judge
Your lie in April
Requiem
Back stage
Idol dreams
Vampire knight memories
Kimi no todoke
Lovely complex
Hana and Hina
My incurable case of love

And many many many more....