YashKnight:
I've seen kill me, heal me's summary I didn't like the fact he had multiple personalities.
City hunter I am on top of the wall which is between watching and not, hoping you can give some spoilers which will make me want to watch it
and king2hearts I dropped coz it took too long for the romance to start and a gentleman's dignity I don't like the sound of it and it doesn't suit what I'm looking for
as for city hall, I will check it out and same for all about my romance, sorry if I seem picky but I am in that zone where nothing seems interesting enough.
City Hunter is also an action romance just like Healer. I personally loved action scenes in this than Healer. ML plans to take revenge on those who killed his father and in the process he becomes the city hunter.
A Gentleman's Dignity is from DOTS writer. It doesn't belong to action genre but a rom-com. It's about love, romance, career and other things of the four men in their 40's.
Both City Hall and All about my romance are political rom-coms.
If you liked the couple in Kill me, heal me check their drama 'Secret'. All the above mentioned dramas have best pairings.
If you're into action/thrillers with less/no romance than Healer here are some more recommendations which will keep you on the edge of your seat
The Guardians
Bad Guys
Six Flying Dragons
Happy Watching :)