Here is a list of what I know of some characters:

Fairy Tail

Vocaloid

Naruto

Bleach

Fire Emblem Awakening/Fates (Main Characters)

Rosario+Vampire

Smash Bros. 4

Dissidia Final fantasy 012

Attack on Titan

K

RWBY

Akame Ga Kill

Sword Art Online

Pokemon (the series only except Black and White)

Infinite Stratos

Highschool DxD

Highschool of the Dead

Overwatch (I'll do my best to write it)

Date a Live

Saijaku Muhai no Bahamut

Newly Added:

Senran Kagura

Cardfight Vanguard (Season 1-4 only)

(Format for request)

Name of Female Character (anime)/Type (Yandere, Cheater etc.)

It can be multiple females x male reader if you want a lemon please specify it.