Music: Lover's Symphonic Dream Paranormal: When the Cicadas Cry

A Certain Magical Index

Scientific Railgun

Meet Chang is a maid

Destiny Guardian Night

SA Extraordinary Student

Ouran High School Male Public Relations Department

Inuyasha

CLANNAD

Natsume's Book of Friends

Shakugan no Shana

AIR

Angel Beats!

I really want to tell you You (the painting style is not very good, but the plot is great)

The Exorcist Boy

X Men (read the comics, the painting style is very gorgeous)

Tsubasa Chronicle

The Light Music Girl

Pandora Hearts

The Familiar of Zero

Start becoming a Demon King today

NANA (Music)

Phantom (not famous, but very beautiful)

Blood of the Holy Demon

Hell Girl

Rose Girl

The Melancholy of Haruhi Suzumiya

I hope the above is helpful to you