Many of these have already been mentioned, but these are some of my favourite healing dramas:

My Liberation Notes

A Piece of Your Mind

On the Way to the Airport

Meet Yourself

Summer Strike

Twinkling Watermelon 

Our Unwritten Seoul

Go Ahead

To Be a Better Man

My Healing Dramas:

1. Love and Destiny
2. She and Her Perfect Husband
3. Hidden Love
4. Gen Z
5. A Journey to Love.
6. Mysterious Lotus Casebook 
7. Guardians of Dafeng
8. Be Your Own Light
9. Ray of Light