 If you liked
Ghost Hunt
|
 ...then you might like
S.I.D.
|
Both are about investigation of supernatural phenomens and exorcism. GH is more abouth investigation and have traces of romance. (In short its more shoujo.) S.I.D. is more shounen or seinen like and focus more on dealing with spirits and their exorcism. If you like one you should try the other.
(PS: Sorry for my english :D)