I wouldn't say they're too horrible or cringe, but this is the first GL that came to mind when I read loser x loser:
https://www.mangago.zone/read-manga/kuchibeta_shokudou/
There’s a manga where it’s a blackmailing rapist Chad x misogynistic incel.. idk if that’s what ur looking for but yeah
https://www.mangago.zone/read-manga/sadistic_open_mind/
glad you like that! that's one of my fav too :D i'm sure i've read a few of this troupe but i can't get it out my head..
try these
https://www.mangago.zone/read-manga/akiyama_kun/
a man of virtue (read it on other site)
https://www.mangago.zone/read-manga/yoru_to_asa_no_uta/

I need some loser x loser yaoi or yuri,
Like.. "Wow these 2 are horrible/cringe, they belong together."