Amazing dramas recs?

Hello! I haven't watched many dramas yet but am looking for dramas or movies to watch.I do have some dramas on my finished and plan to watch list. I'm current watching The Lover, Coffee Prince, A Clear Midsummer Night and going to start The Myth. If you guys know any amazing dramas from any country, that would be great. 
Suggestions that I'm in interesting in:
Revenge 
Historical 
Melodrama 
Romance (star-crossed loves/forbidden love, older man younger woman, second lead gets the girl, etc.)
Or any other epic dramas.
Thanks!

Hmm... So let’s start from your own plan-to watch drama list : I hear your voice, Kill me Heal me, Bridal Mask. Those three are definitely amazing dramas.
Well, I could give you a lot of titles but you might as well just look into my own complete drama list and sort it out by rating. I gave the must-watch dramas a 10/10.

Try the new ongoing show

My Unfortunate Boyfriend
Sensory Couple. 

I think you will like them

I just finished The Princess' Man and I have to say that was nothing short of amazing.