I'm currently watching come and hug me which to me is an absolute masterpiece and if you aren't watching it I definitely recommend you do. I love the feel of the drama and I'm looking for more of this type of melodramas that are worth investing time into. 

✔️ All In 

✔️ Pinocchio

✔️ While You Were Sleeping 

✔️ It's Okay It's Love 

✔️ Kill Me Heal Me 

Autumn's Concerto

Fated to Love You (Korean)

Secret

Shining Inheritance

Eternal Love

just between lovers....absolutely loved it

Secret

Kill me heal me

Rebel who stole the people

Golden rainbow

Ugly alert

Princess's man (must watch) 

Just between lovers 

Innocent man

Good doctor

Pinocchio 

Tatta Hitotsu No Koi

Just Between Lovers

Can You Hear My Heart

Come and Hug Me(not sure if this has a happy ending or not since it is currently airing but it is brilliant - a must watch) 

Just Between Lovers. This is a heavy melodrama and, at times, was difficult to get through but the payoff in the end was worth the wait I think.