SAO
Definitely

^my answer as well

DBZ

Fullmetal Alchemist!

One Piece

NARUTOOOOIOOOO

Sao or does the last air bender count?

*looks at Steven universe* is this anime enough?

Hentai

Tokyo ghoul *v*

Is no one gonna come into My little Monster or

Gotta agree with undercoverk SAO would be amazing

YuGiOh!

Ouran Highschool Host Club! Just imagine being rich and being surrounded by charming guys.

"Attack on Titan!".......said no fan ever

Higurasghi!
No jk something shoujo af

Naruto or Pokemon

Yu-Gi-Oh! I mean like my deck would easily beat anyone and everyone in the original series

Aincrad or GGO from SAO. Not Alfheim, though.