After doing a deep dive into your watchlist, I'll reccomed three shows that you probably haven't watched(atleast i didn't find them in your list):
Stranger : a detective and prosecutor team up for a investigation. There is no romance in this but the chemistry is amazing. It's a very well written show with smart dialogue and reveals. You need to pay attention while watching this. This has two seasons. Must watch
Under the queen's umbrella : this a historical with the queen being the central character. She was initially mild mannered but palace politics keep pushing her to her limits that she becomes an abrasive person in order to protect her kids. She is a very well written character that I hope other historical dramas learn from. The element that struck me the most was if this drama was made from the perspective of the antagonist, i would have rooted for him. Must watch
Go back couple : this a rom com youth drama. An adult couple gets divorced because they are worn out by their life and responsibilities. Soon after their divorce they are sent back in time to their university days where they first met. This is the only sci to aspect of the show. Over the episodes you are shown what went wrong between them. On a rewatch I realised it's such a plausible story that even when two good people try their very best, if things are taken for granted, it can ruin a great relationship. Focus on the leads while enjoying the freedom and fun among a group of students. Must watch
All three are Korean with satisfying endings that fit the storyline. I hope you like them.
PS: You already have a very full plan to watch list. Are you sure you want to add more?lol