pretty much a list for almost every K romance I can think of. 

All genre. 

This list is for more longer ep? they basically don't have romance or other genre as a main focus.

these are all my favorite dramas that have a special place in my heart

All genre. 

this is more for dramas where they put in supernatural or just unrealistic things.  Romance can be the main focus in some of these too. 

scary, crime thriller, mystery and action. all sorter of things.