Idk manga but if u still willing to read, my recommendations are: Pig Pen, Bastard, and Rotten. Some of these are in WEBTOON, so if you can support the authors then that would be great. Again, they're not manga but still VERY good, enjoy (づ￣ ³￣)づ
Feeding lamb
Melvina's therapy (on line webtoon)
Killstagram (on line webtoon)
sweet home, chainsaw man
idk if Its Mine counts but yeah, that one to
someone pls suggest some good horror manga