For people who love Rosemary, I want to suggest Otonashi’s older work,
Cinderella story. A short read, probably just 1/3 to 1/2 normal LN.
The MC might not be as strong as Serena, but the antagonist is like over-steeped Rosemary tea in stupidity and death wishing.
There’s also
Throw the trash into garbage bin where the MC just fight it the aristocracy (read: dirty) way. Things like ruining reputation and making them lose their place in society.
Like in a scene, her narration goes : Yes, tears are a woman’s weapon, but what made you think you’re the only one who has it? I’m also a woman.
Also compared to those, Serena’s family is decent. Her mother might not be the most perfect person, but she’s overall a (too) nice person, and her father is sane enough.
The parents in the other works are typical Cinderella story’s evil family. Father who loves his new family more, evil stepmother who hates the daughter from previous wife, and the stepsister who bully while playing victim.
Oh, and there’s also a new one where the MC’s fiancé got stolen by her stepbrother (from her father’s lover). She calls his mother a whore, and her son is a manwhore. That’s despite understanding well marriage between nobles are job, and having affair is normal, but it doesn’t mean they don’t have reason to despise the affair partner.