Monsterfucker recs

You didn’t specify what orientation so I’m sending what I know which is BL(sorry if you don’t want that)
https://www.mangago.zone/read-manga/umi_no_soko/
https://www.mangago.zone/read-manga/when_incubus_wears_a_chastity_belt/
https://www.mangago.zone/read-manga/otoshi_ai/

Also
https://www.mangago.zone/read-manga/the_monster_and_the_beast/

And a list I found, again sorry if you were looking for het content or yuri (very rare to find monster stuff for them)
https://www.mangago.zone/home/mangalist/436047/

LOLL tysm, ive unfortunately alr read all of these (u have great taste)
My b for not specifying genre i read all but if its bl or gl even better fr

Probably not what you're looking for exactly but MADK maybe? But it's pretty gory and fucked up, so might not be the best rec.
Sorry, it's just what came to mind when I read your post.

(Also much love to mana-sama pfp!! Malice Mizer was my shit when I was in HS)

My favorite gl of all times love thy neighbor, artificial temperature and drunken my boss r personal faves
https://www.mangago.zone/read-manga/other_than_my_friend_s_sister_something_else/
https://www.mangago.zone/read-manga/kono_koi_wa_hoshi_ni_wa_negawanai/
https://www.mangago.zone/read-manga/yurigurashi/
https://www.mangago.zone/read-manga/no_don_t_fall_in_love/
https://www.mangago.zone/read-manga/a_white_rose_in_bloom/
https://www.mangago.zone/read-manga/artificial_temperature_36_7/
https://www.mangago.zone/read-manga/my_girlfriend_s_not_here_today_official/
https://www.mangago.zone/read-manga/if_you_can_t_kill_me_love_me/
https://www.mangago.zone/read-manga/heartfelt_diary/
https://www.mangago.zone/read-manga/drunken_my_boss/
https://www.mangago.zone/read-manga/bittersweet_con_panna/
https://www.mangago.zone/read-manga/the_daughter_of_evil_and_miss_devil/
https://www.mangago.zone/read-manga/love_thy_neighbor_2/

Omg ykw i misread the post nvm ignore these none of them r monsterfucker

MADK is the most popular one i know (and one of my fav bl’s ever) so here are some that i hope you haven’t already read:

https://www.mangago.zone/read-manga/eat/

https://www.mangago.zone/read-manga/zhen/ there’s a plethora of dogs and cats but you ain’t never seen a bird and it’s such a good story

https://www.mangago.zone/read-manga/ookami_he_no_yomeiri/

https://www.mangago.zone/read-manga/the_monster_and_the_beast/
a classic that you probably alr read lol

i don’t really know what falls under the category of what your asking for lol but hopefully you haven’t read at least one of these

https://www.mangago.zone/read-manga/the_gentleman_s_demon_uncensored/
( Summoned monster )

https://www.mangago.zone/read-manga/akete_mo_kurete_mo/
( One shot and )

https://www.mangago.zone/read-manga/the_curse_of_christmas/

https://www.mangago.zone/read-manga/oneness/
( Monster + tentacles)

https://www.mangago.zone/read-manga/the_girl_who_married_the_big_snake/
( This one has female MC though , only non BL)

https://www.mangago.zone/read-manga/a_fisherman_s_dream/
( Art is shit though)

Thank you all so much (including gl list loll) (also, my malice mizer era always comes back loll