Okobore Hime to Entaku no Kishi
It's a very good and original story. Nothing like it out there specially when it comes to how she's connected with the incarnations from her past AND future. Unfortunately, it's discontinued (ends in chapter 17). If you want to finish the story though, this manga is based on a novel that you can try to look up and read.
Skip Beat
Amazing read. Kyoko is very lovable and funny. However, the romance with this one is very very slow. Almost no progress and I'm currently in the most recent chapter (chapter 261). More than the romance, the story is about Kyoko and her growth as an actress as well as her personal growth and the people she meets.
Red Lion
A quickie. I forgot about this ever existing lol
Hana No Kishi
I love the characters and I love the relationships between the characters
La Dolce Vita di Adelaide
Special A
When I first picked this up (the anime) I dropped it cas I thought it was bs lol. The main couple is so obnoxious dammit. However, I picked it up again cause my middle-school ass couldn't accept that I hadn't watched/read this since it was one of the top shoujo animes/mangas back then (and now it's a shoujo classic of the 2000's). Ended up getting all the way through the anime and manga cas the side couples are worth it. Honestly though, I still don't see why this was/is so popular.
Rokudou no Onna-tachi
A manga full of strong women
Saver Manhwa