I highly recommend Pigpen, it's a horror, phycological, tragedy manga. if you love these genres, I'm sure it'll be to your liking.
Eleceed
https://www.mangago.me/read-manga/to_you_the_immortal/ ヾ(☆▽☆)
Also in ur want-to-read list, shimanami tasogare and ajin are good~ (inu yashiki explores becoming inhuman too if you like ajin)
love that artist from ur pfp ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄
Taste! Their art is just immaculate ♡
rec some high rated stories! 9.5+, preferably not BL, GL, smut. lists are welcomed!