Legend of the Blue Sea
Goblin
Shopping King Louis 
The Flower in Prison
Romantic Doctor, Teacher Kim
Oh My Geum Bi
Love me if you dare
Oh my Geum Bi 
Night light 
逃げるは恥だが役に立つ
청춘시대
First Kiss for the Seventh Time
Hwarang
Legend of the Blue Sea
Solomon's Perjury
Yes! Mr. Fashion
Weightlifting Fairy Kim Bok Joo
Hwarang
Cheese in The Trap
Goblin
LOTBS
Love o2o
Totsuzen Desu ga, Ashita Kekkon Shimasu 
Hwarang 
Rebel: Thief Who Stole the People 
Introverted Boss 
Chief Kim 
Missing 9 
Tomorrow With You 
Voice (Kor) 
Soratobu Kouhoushitsu (re-watch)
Now i watch: 
You who came from the stars, Hwarang, Voice, Defendant, Star of the Universe, Missing 9, Weightlifting Fairy Kim Bok Joo, Who Are You: School 2015 and i'm waiting for the first episode of Tomorrow with you.
Most are currently airing dramas:

109 Strange Things (airing)
A Life (airing)
Chief Kim (airing)
Defendant (airing)
Eternal Love (airing)
Fool in Love with You (airing)
Gekokujo Juken (airing)
General and I (airing)
Hwarang (airing)
Introverted Boss (airing)
Kirawareru Yuuki (airing)
Missing 9 (airing)
Rabuho no Ueno-san (airing)
Rakuen (airing)
Rebel: Thief Who Stole the People (airing)
Saimdang, Light’s Diary (airing)
Star of the Universe (airing)
Tomorrow With You (airing)
Totsuzen Desu ga, Ashita Kekkon Shimasu (2017)
Voice (airing)

Other dramas on the side:

49 Days
Cain and Abel
God's Quiz Season 3
Itazura na Kiss - Love In Tokyo 2
Jimi ni Sugoi! Koetsu Garu Kono Etsuko
Queen Seon Duk
Tomorrow With You
Missing Nine
Hwarang
Introverted Boss
Father I'll Take Care Of Your
Misaeng