What Anime would Du recommend based on these?

Fractale
Higurashi
C3 (the 3 is squared)
Boku wa Tomodachi ga Sukunai
Baka and test
Toradora
Kore wa zombie Desu ka

Sorry if this isen't what you're looking for oder have already seen them

Black Butler.

Horror/Scary -Another
Romance - Clannad;After Story/Fruit Basket
Shonen - Durarara/Bleach/Fairy Tail
Bloody - I can't answer this question.. o.O
Slice of life - Ouran High School Host Club
Actions - Angel – Jäger der Finsternis Beats
Demons -Inuyasha/Black Butler

Elfen Lied! It has Horror, Romance, Blood, Action, creatures similar to Demons, somewhat Slice of Life, but Shonen....
Ehhhh...
Sorry I couldn't think of anything else...
X(

Horror/Scary: Akame Ga Kill!
Romance: Chivalry of a Failed Knight
Shonen: Fullmetal Alchemist
Bloody: Lord Marksman and Vanadis
Slice of life: The Devil is a Part-Timer
Action: Qualidea Code
Demons: High School DXD