I’ve found the biggest cock sammies in this list https://www.mangago.zone/home/mangalist/981817/?filter=&page=1
Some of the trashiest dudes I've encountered:
https://www.mangago.zone/read-manga/royal_fiance/ (Asshole, aggressive, and rapes uke)
https://www.mangago.zone/read-manga/cappuccino/ (cheats of his fiancee with his STUDENT)
https://www.mangago.zone/read-manga/comedown_machine/ (this is a gathering for the worst of trash. the ex-bf that is dumped at the beginning isnt even trash compared to the other guys)
https://www.mangago.zone/read-manga/warui_yume/ (Cant talk about trash without this one make it into the list)
https://www.mangago.zone/read-manga/sanshoku_mazareba_kuro_ni_naru/ (Ngl idr what this one is about but I tagged the seme as trash so it must be true)
https://www.mangago.zone/read-manga/hana_no_namae/ (Hetero, the dude needs professional help)
https://www.mangago.zone/read-manga/scarlet/ (Unrecyclable trash capable of double suicide)
https://www.mangago.zone/read-manga/koizora/ (Hetero & tragedy, kids trying to play growups and sucking real bad at it)
https://www.mangago.zone/read-manga/fukurou_kun_to_kare/ (Yet another cheater but this one is happy go lucky about it)
https://www.mangago.zone/read-manga/hidoi_otoko_aoi_akira/ (Cheater once again "Let me sleep with someone else cause I love you but you aint ready")
https://www.mangago.zone/read-manga/hogu_hagyeongsu/ (This is just all sorts of fucked up)
https://www.mangago.zone/read-manga/miwaku_shikake_amai_wana/ (Both dudes suck. One is a homophobe, the other one is a sadistic fuck)
https://www.mangago.zone/read-manga/plaything/ (The King of sadistic fucks)
https://www.mangago.zone/read-manga/raising_a_bat/ (People might disagree but I find the uke insufferable. He's a manifestation of the whiny bitch "oh poor me" spirit)
https://www.mangago.zone/read-manga/i_will_be_your_husband/ (All these dudes SUCK)
https://www.mangago.zone/read-manga/hirunaka_no_ryuusei/ (Once again people will disagree but I bloody hate Sensei. Spineless trash that seduces a student but doesn't have the balls to stick through it. He's the epitome of hot and cold trash.)
I'm talking lotsa them okay, exhaustive lists of absolute cock sandwiches (gay, hetero, no matter) bc I've read quite a bitta these so it's likely I'll have read singular recs heh. I'm feeling a whole lotta nothing these daze so I could use the stimulation. thanks big!