Sandysan you should totally watch Boss and Me...I adored that drama very much:D
Shopping King Louis is a pretty solid romcom :-)
I dropped Another Oh Hae and Coffee Prince...so boring
you always say me this, i guess i will really try watch it again haha

Be Arrogant!!!
winter sonata maybe? 
Faith
Cinderella and the four knights
@pamn, I understand that old dramas are difficult to see, but this one is beautiful!

@momo, I recommend Ugly alert! it is wonderful!

Iljimae

Rooftop Prince

Giant is pretty good if you want a revenge/melodrama plot with a hint of romance! The cast is pretty amazing ;)  

Good Doctor is amazing and it gets better after the first few episodes!! 

I was going to choose "fated to love you" then i realised you dropped the tai version whilst i've watched the korean one.

I'll suggest then "Missing You" from your on-hold list.. It really deserves a second chance.