When it comes to Horror themed stuff i tend to like something either:
A-Actually quite horrifying and/or unsettling. Basically stuff that will at least make you cringe.
B-Not really something that would the reader would possibly find scary at all, but rather incredibly interesting in terms of just how creepy it is. Like your watching a harmless looking cartoon casually do things that would convince people that they're witnessing Satan if it was real.
What anime or manga would fit one of these, /rec/?