I haven't checked your list but I will write my recs since other people can find it helpful as well.
Agree with The World of the Married recs, she was a real badass even though she didn't know this side of her before.
I would say Age of Youth , Be Melodramatic , Avengers Social Club , My Mister. These are slice of life dramas but the women in it live their own lifes with their own decisions and I liked that. They were not dramatically intelligent but strong and their own persons.
Then I can say Angel's Last Mission: Love. I mean, for the beginning she was rescued yes but it was in a fantastic way and it was a start. In general, she might be one of the most strongest women in a romance kdrama I've ever seen, she had good sides and bad sides but not the romantic interest of the male lead but her own character.
I might say Falling for Innocence , she was indeed a secretary but she never changed her character or her values a bit, she was the most reliable character from beginning to end. I was impressed and respected her a lot. Sekai Ichi Muzukashii Koi resembles this in a way.
Signal and Stranger has really compenent and badass FLs as well, almost no romance tho. Amazing dramas.