What Korean Drama should I watch next?

I just finished Lie To Me, I LOVED the actors and the plot. xD I need
to know what I should watch next, I have a big list but I don't know
which ones good. Also, I like dramas that involve some sort
of lie (pretending to be married, cousin, etc)

I've seen:
Boys Over Flowers = It was okay
You're Beautiful = Loved it
Dream High = Didn't like so much
Playful Kiss = It was okay
My Girl = Loved It
Mary Stayed Out All Night = Loved It
My Girlfriend is a Gumiho = Liked It
Lie To Me = LOVED It

Please help!