If you want to head drive straight into the gore, MADK and Dear Door cannot be ignored. If you want gore with some more psychological elements, Castehate, Sun's Blood Well, Interview With A Murderer, Beastars(not really a yaoi but its got elements) , Painter By Night, and really I could go on, but really I can't reccomend those first two enough
I'm already reading Dear door and honestly,it isn't really gore-ish(or am i just a fucked up person,so that something that's brutal for others is average for me,i mean i did read berserk and wasn't disturbed by anything in that) unless it gets really nasty in the later on since i'm not reading the raws
I'm gonna check MADK,and i'm gonna put the other mangas you mentioned on want to read
Thank for recommendations
It's been a while since i read a yaoi with so much gore....