The secret life of the demon king, full volume, don't drop the soap (warning for this one, with the sexual assault in the beginning) are some that fit your description.
Eunsuk & Jung-gu is pretty good (really funny too).
https://www.mangago.me/read-manga/eunsuk_jung_gu/
Full Volume is worth the hype (I second the above comment) (though not many chapters out yet)
https://www.mangago.me/read-manga/i_can_hear_it_without_a_microphone/
Under the Green Light
https://www.mangago.me/read-manga/under_the_green_light/
By the same person --> Walk on Water is actually amazing (and complete)
https://www.mangago.me/read-manga/walk_on_water/
Anti PT is for sure underrated and the uke is sort of buff?
https://www.mangago.me/read-manga/anti_p_t/
Eyoo I’m searching for more underrated stories with buff Ukes cause it feels like I’ve read/ am reading all of the ones that is :((
So if you have any that you think I maybe haven’t read pls drop em here :33