What about novels? I've got 2 on my mind that I think would fit.
https://www.mangago.zone/read-manga/i_ship_my_rival_x_me/
Recommending this even though its not manga. But its the silliest and cutest misunderstanding I've evere read
If you aren't a virgin die (Manhwa)
Shitsuren Junky (manga)
High clear (Manhwa)
1 to 10 (manhwa)
Crossing the line (Manhwa)
A prince in a luxurious mansion (manga)
Aimai na wolf (manga)
Hoshi to Harinezumi (manga)
1 to 10 is likeeee cute but season 1 just ended I'd say let it sit for awhile and then read it...
in need of BL/yaoi MANGA with funny/silly/goofy misunderstandings
idc abt red flags or if it's a oneshot, just shoot them my way- i can judge for myself