Ok so this one has a different art style and it has a lot of chapters but they're super short. I really recommend it https://www.mangago.zone/read-manga/yumi_s_cells/
This one actually ended up making me laugh a lot https://www.mangago.zone/read-manga/is_it_a_fortune_or_is_it_a_woe/
Other than that there's
https://www.mangago.zone/read-manga/beware_of_the_villainess/
https://www.mangago.zone/read-manga/miss_not_so_sidekick/
https://www.mangago.zone/read-manga/i_stole_the_male_lead_s_first_night/ (the MC for this one is ridiculous so it's up to you whether you find her funny or not)
omg, tysm !! <33
a straight, rom-com, complete, no smut MANHWA please!!