Elfen Lied, Dorohedoro Recommendations
Chaos. Dorohedoro and Elfen Lied share a similar need to bring chaos into their story.
Dorohedoro does this in a crude fashion, with people dying and all kinds of hell going down. Elfen Lied does this in a slightly subtle fashion, with Lucy annihilating anyone in her way with ease.
Both are good anime with Dorohedoro being much more comedic than the serious tone Elfen Lied has with its psychological themes. Both also have a thing for showing blood and gore.
lot of gore with weird but interesting characters