If you liked
Hellsing
|
...then you might like
Kuroshitsuji
|
Both are superhuman beings (Sebastian and Alucard) under contract to english nobility (Ciel and Integra). Even though the main aim of the two animes are different, (revenge vs elimination of vampires), they are almost cut from the same cloth! However, Hellsing tends to be darker and more bloody.
If you liked
Shounen Onmyouji
|
...then you might like
Kekkaishi
|
Both have ayakashi and the protaganists have ayakashi familiars. Other similar areas can also be found if you watch ^^
If you liked
Darker than Black: Kuro no Keiyakusha
|
...then you might like
Blassreiter
|
If you equate the Contractors with the Demoniac, everything else falls into place.
If you liked
Claymore
|
...then you might like
Darker than Black: Kuro no Keiyakusha
|
It gives the same kind of tension. The main characters are also both loners, and behave similarly in certain ways.
If you liked
Trinity Blood
|
...then you might like
Rurouni Kenshin: Meiji Kenkaku Romantan
|
Both Kenshin and Abel have had troubled and bloody pasts. They also prefer to put on a facade of innocence and weakness even thought they are neither.
If you liked
Tenshi Kinryouku
|
...then you might like
Devil & Devil
|
Has angels. And devils. And a war between them.