If you liked
Death Note
|
...then you might like
Kuroshitsuji
|
Not too similar but both have a psychological feel and a sort of supernatural presence to them. While death note focuses mainly on the kind of light yagami and how he uses his power of the death note to meet his end goal of becoming the new worlds god, ciel more of uses the power of his ever obeying Butler to seek revenge for those who killed his parents, both are thoroughly enjoyable and more mature in nature with black Butler having a more comedic and light hearted tone at times. I regard both animes highly.
If you liked
Shingeki no Kyojin OVA
|
...then you might like
Tokyo Ghoul
|
Both animes are very popular action and dramatic style anime mainly with people who are new to anime so if you are new to watching anime or if you are stuck on a specific genre and are trying to branch out these two animes here are fairly good at introducing people to action / drama anime and I thoroughly enjoyed both of them.
If you liked
Fairy Tail
|
...then you might like
Ansatsu Kyoushitsu
|
Fairy tail is about the journey of the members of the fairy tail guild mainly 5-6 characters and their quest and how much stronger they all get and increase as friends while assassination classroom is about "bad" kids who slowly Becime closer friends with each other and their sensei who they are trying to get kill so this is also a quest of friends who get stronger to overcome gigantic obstacles