Hi, actually I finished watching the Emergency Couple Korean drama and I really love it. I'm planning to watch Korean dramas that has the same plot with Emergency Couple like the ex-couple meet again or anything that shows how they hate each other from the beginning then eventually fall in love. I prefer those comedy dramas that will make me laugh a LOT. Hope you can help me, thank you!

Try Go Ho's Starry Night
Well, this is a really common plot device in Korean dramas... first hating each other (whatever the reason) and then fall in love...

The most famous example of it, of course being Boys Before Flowers (the original version is the Japanese one, it's the best, check it out)
Shinning Inheritance
Another Miss Oh (this is a gem!)
Cheese in the Trap
Secret (this is a melo, but it's great! the hate level is really high here)
Prosecutor Princess
Falling for Innocense 
Master's Sun
She Was Pretty
Goong
Secret Garden is just a classic, bickering is so amusing and the chemistry is off the chart!
Wow. Thank you so much guys. I will definitely watch all the dramas you recommend.

Try the currently airing "Jealousy Incarnate" it's brilliant!!!!! 
Yes. Its already on my "Plan to Watch" list. Im a fan of Jo Jung-suk, thanks though for recommending