Hi,
What you listed above is "okay" dramas (just fun while watching, but dont have much feeling after you watch them), but I think none of them is actually "great."
Here are some suggestions:
I'm sorry, I love you (MISA): 미안하다 사랑한다
Ruler of your own world (ROYOW): 네멋대로 해라
Piano: 피아노
Thank you: 고맙습니다
These are more serious and not very obvious dramas, but they are quite touching and impressive.
Hope you enjoy them :)