HanaKimi (original) - one of the best HUGE supporting cast lol. Most of the time I didn't care about the main story, just focusing on how hilarious everyone else is :D

Chief Kim 

Weightlifting Fairy

Proud of Love (first 16 episodes or so, then hits you right with feels) - Great slapstick comedy imo.

Warm and Cozy?

Go Princess Go - This is really funny. If one does not find this funny, at least they can see how good Crystal Zhang is, she carries this show HARD.
Beautiful Gong Shim made me laugh a lot.   Master's sun made me laugh too.  But you know, that's a classic haha
High End Crush
5-ji Kara 9-ji
I forgot about this one. If you're open to lakorns, Leh Lub Salub Rarng: It's a body-switching drama, really funny and there's minimal romance.
Oh My Venus
Reply 1988
Weightlifting Fairy Kim Bok Joo
Chief Kim
Protect the Boss
Emergency Couple
Personal Taste
Please come back mister
I loved these so much and couldn't stop laughing:

My Love From Another Star
Bring It On Ghost
Weightlifting Fairy Kim Bok Joo
Shopping King Louis