I haven't seen Hotel King so I'll just recommend some of my favorites:
I Can Hear Your Voice, Pinocchio, You're All Surrounded (I've watched it 3 times) , Blood, Gap Dong, Monstars(currently watching), and Doctor Stranger
Oh you watched Hotel King? I've been considering watching that. Innocent Man has a melodramatic feel with a romance. The Good Doctor has the business aspect with romance but also the serious topic of autism. King of Dramas is also a good business comedy with a melodramatic feel near the end. I'm not sure what all you've seen or I'd recommend others.