Does anybody have some good animê suggestions?

Ghost Hunt is creepy, funny and romantic at the same times. Lol.

'not sure about your meaning of horror, but here some:

-Kisejiuu Sei No Kakuritsu (Parasyte) ***I actually loved it a lot!
-Tokyo Ghoul
-Elfen Lied
-Deadman Wonderland
-Mirai Nikki

These are all horror:
Hellsing, Terraformars, Monster, Parasyte and Elfenlied

-Shigatsu wa kimi no Uso (Music. And prepare a box of tissues.)

-Free (Abs. Swimming. Abs.)

-Haikyuu (Volleyball. No power-ups)

-Parasyte

-Akame ga Kill (Assassins. Gore. Death flags.)

-Tokyo Ghoul (cannibalism. red eyes.)

-Mirai nikki (yandere.)

-Fate/stay night Unlimited Blade Works (Heroic legends. Awesomeness) or try the prequel:
-fate/zero (MORE awesomeness)

Not into horror much but these are good, I guess

GUNDAM BUILD FIGHTERS

Another
The Curse of Kazuo Umezu
Twilight of the Dark Master
Guardian of Darkness