Any anime or mangas that has death, demon or stuff like that. Or similar to death note, za...

Kuroshitsuji (๑•ㅂ•)و✧
About demon butler and human young master

Haven't watched Zatch bell. But if you like Death Note then you might like these -
* Monster (many deaths. but no demons)
* Jigoku Shoujo (contract with hell girl~contract with shinigami)
* Code Geass (Lelouch~Light, CC~Shinigami, Death Note~Geass)
* Black Butler (contract with the Demon~Contract with Shinigami)
* Mirai Nikki (Death note~Nikki)
* Darker than Black (contract with gate~contract with shinigami/death note)

another or corpse party

Zombie Loan!

All of these have an anime that you may want to check out
http://www.mangago.me/read-manga/berserk/
http://www.mangago.me/read-manga/claymore/
http://www.mangago.me/read-manga/yu_yu_hakusho/
http://www.mangago.me/read-manga/beelzebub/
http://www.mangago.me/read-manga/d_gray_man/
http://www.mangago.me/read-manga/blood_lad/
http://www.mangago.me/read-manga/xxxholic/

Thank you

Thank you so much

Already watched it but thank you.