Hi White Unicorn, many of the titles you have listed fit my taste too, so here are a few suggestions of dramas that I have loved that are not on your list :
1) Memories of the Alhambra (currently watching at episode 12 and it is very very good... (on Netflix).
2) A Witch’s Romance (the first episode is weird but the rest of the series is very good.)
3) In need of romance 3 (on Netflix, doesn’t matter if you haven’t watched the 1 or 2, they are not sequel nor have the same characters).
4) What’s wrong with Secretary Kim.
5) You drive me crazy (short 4 episodes drama on friendship that develops into a romance, very good and easy to binge watch).
6) Fight for my way. (Park Seo Joon playing a martial art fighter, friendship that develops into a romance)
7) It’s Okay that’s Love. (On Netflix, interesting story)
I hope you like Park Seo Joon, because many of the dramas I’ve put there have him in it!