There are some dramas that I loved a lot!!

 •Strong woman do bong soon

•Behind your touch

• w

 •while you are sleeping

•Pinocchio 

•reset (Chinese drama)

•vincenzo

•-showtime-from-now-on 

 •suspicious partner

So please recommend me something good like a mystery thriller drama but with comedy/romance. Thank you ! 

And some that I don't like: / dropped it

•Let's fight ghost

•K2

•Healer 

Thriller and comedy don't really work for me personally.....one makes the other look just utterly ridiculous but wello can't say there aren't some dramas that make it work like eg
Inspector Koo
Psychopath Diary

Romance and thriller are a little easier to be honest. There are a few that do it exceptionally well.
Pinocchio
Flower of Evil
Tunnel
Trinity of Shadow
Kidnapping Game