I'm a bit of a fan of the supernatural in the way of certain myths, not so much the magic. I loved Lobster. I liked YWCFS. However, I didn't finish Secret Garden once I knew a personage had used magic to do it. I won't watch Goblin.

So I can't give much information.

Search supernatural Korean dramas & you'll get DF lists and Amino lists.

Best wishes in your search!

I'm afraid I don't know much outside the usual suspects, but the one that comes to mind after reading your list is My Girlfriend is a Gumiho. If ghosts count, you have quite a few: I liked Arang and the Magistrate, Bring it on Ghost, Oh My Ghostess and Master's Sun. But if you haven't yet, one of my personal classics is I Hear Your Voice.

Heavy on the supernatural, light on the romance:

- Signal. A detective finds a walkie-talkie which connects him to a detective in the 1980s. Together, they solve crime!

- Vampire Prosecutor. I prefer season 2 (which you can watch on its own - interesting premise & freaking awesome bad guy)

- Secret Investigation Record (aka Joseon X-files). Set in Joseon & based on a historical UFO report. Really good.

- Possession aka Hon/Soul. Horror and very bloody.

- Nine. Time-traveling incense.

- Who Are You? Detectives, amnesia, ghosts, wisecracking shaman, thwarted true love.

Heavier on the romance & a little makjang:

- Rooftop Prince. The King of Joseon & three of his retainers get transported to modern-day Korea. The King's reincarnation's descendants are jerkfaces.

- Master's Sun. About a girl who is tormented by all the ghosts she can see, and the rude chaebol whose touch makes all the ghosts disappear.

- Night Watchman's Journal. I lost interest in this halfway through, but it does have Jung Il-woo.

Definitely my favorite genre. Is it the tone you're looking for or the supernatural? Because all of these have differing tones, but they're all quite good.

W: Two Worlds (inter-dimensional fantasy, my favorite drama)
Signal (time travel)
Nine: Nine Time Travels (time travel, the best I've seen)
Queen In-Hyun's Man (time travel, similar feel to some of those you've watched)
Master's Sun (ghosts, suuuper cute!)
Bring it On, Ghost (ghosts, also really cute)
Girl Who Sees Smells (she uh... she sees smells. It's actually done really well.)
Kill Me, Heal Me (it's not fantasy, but I think it fits well with the others you've watched and I liked it)
I Hear Your Voice (he uh... hears other people's voices. Their thoughts. I loved it.)

OH! And I forgot one of my favorites!

Ghost-Seeing Detective Cheo Yong: The name says it all - cop who sees ghosts & solves crimes w/the help of a high-school-age ghost. Low on the romance & high on the crime-solving, just the way I like it.

I really liked it - especially the 'holy crap, changing the past actually has consequences' narrative - so many time travel shows just brush past that.

Well-written and directed. I was stuck on episode 5 until I finally convinced myself to pick it up after reading the year-end reviews. I needed the right mood and environment to watch it. The main veteran detective leads riveted me to the end. Emotional ride. My eyes were swollen for 2 days.

Hahaha I can't say I see the resemblance; Kim Hye-soo looks rather like Kim Sun-ah to me. :-)