Recently I have been watching stuff with Gong Yoo, so if you are interested, you should probably want to watch 'Big' because that I think is the best of his works. There is also Coffee Prince and Hello My Teacher which are earlier ones of his, but I personally think 'big' to be better...
I also really liked (of what I watched so far) Faith, which stars Lee Minho. I like that one by him and besides Boys Over Flowers my fave drama starring him would have to be Personal Taste. Any of these that I have mentioned are good, if you haven't already watched these. Also Kim Hyun Joong starred in a drama called Playful Kiss which I quite liked. TVXQ's Max Changmin stars in one called 'Paradise Ranch' which was probably one of the first K dramas I watched and I LOVED it.
There is this other one that seems to be quite popular and it is called To The Beautiful You which stars SHINee's Choi Minho. It alse has appearences by EXO as well.
I really want to see this Chinese drama called Melody Of Youth which has (my lovely) Zhou Mi of Suju M and also lovely Heechul <333 *squeals* But I have yet to find decent links for this one yet.... I really REALLY want to watch this one T.T
Here are some links if you are interested...
'Personal Taste' I HIGHLY recommend this one ^^
The woman who plays Gong Yoo's (That's his real name, I forgot his character's names XD) love interest is the same woman that plays 'Monkey' from Boys Over Flowers~~~~