@Panda 
definitely Healer the best from its genre.
my list
1. Tunnel
2. Remember: war of the son
3. six flying dragons
4. Chicago Typewriter
5. Rebel: thief who stole the people's hearts
Arang and the Magistrate
Ex-Girlfriend Club
Fated to Love You
Good Doctor
Memory
The World That They Live
Arang and the Magistrate

Goblin
The Master's Sun
Kill Me,Heal Me
Strong Woman Do Bong Soon
You Who Came From The Stars
Weightlifting Fairy Kim Bok Joo

Ugly alert

Giant
Secret
Memory
Autumn Tale
Crazy For You
I Have a Lover
Autumn Tale 

Xuan-Yuan Sword: Scar of Sky
The Classic of Mountains and Seas
The Heavenly Sword and Dragon Sabre
Legend of the Condor Heroes
The Legend of Flying Daggers
The Legendary Siblings 2
N/A

Lets eat
Fondant Garden
Skip Beat
Antique Bakery
My love My Bride
My love My Bride, funny movie!

Fight For My Way
Suspicious Partner
Man to man
My sassy girl
My Father is Strange
Suspicious Partner

Come! Jang Bo Ri
Golden Rainbow
One Well-Raised Daughter
Sweet Home, Sweet Honey
My Daughter the Flower
Come! Jang Bo Ri

Duel
Stranger
School 2017
The King Loves
Reunited Worlds
Strongest Deliveryman

The King Loves

Arang and the Magistrate 
The Master's Sun 
Kill Me, Heal Me
School 2013
Bridal Mask 
Strong Woman Do Bong Soon
The Master's Sun

Chief Kim
The Chaser
Ode to Joy
Memory
Deep Rooted Tree
Nirvana in Fire
Nirvana in Fire

Reunited Worlds
Punch
My Girl
Eternal Love
Age of Youth
Kingyo Club
Mahoro Ekimae Bangaichi
Age of Youth

A Gentleman's Dignity
Can We Love?
Good Doctor
Queen of Mystery
Secret
The Spring Day of My Life
The World That They Live In
What Happens to My Family?
What Happens to My Family?

Chief Kim
Cruel City
Signal
The Suspicious Housekeeper
Weightlifting Fairy Kim Bok Joo