- Chitra for the "chronically ill woman has to rely on men around her to protect herself and her people", but it's light-hearted and sort of horny
- Death is the only ending for the villainess for the "They dislike her at first, but they come to love her, only to realize they've broken her trust too much", but the mc is a bit reserved with her emotions as she's afraid of getting betrayed
- A stepmother's märchen for the "A seemingly happy and mature lady actually has a horrific backstory, so even though she has people who want to help her, they don't know how"
- The broken ring: This marriage will fail anyway, is actually the best match for what you're looking for. A bad cheating husband hoping to get reaction out of FL, not knowing she picked him because she wanted a man who would not love her, because sad backstory reasons, realizes he only did it for her attention and tries to become a better husband (she doesn't forgive right away)
https://www.mangago.zone/read-manga/setting_sun_dazzled_eyes/ on webtoon as The spark in you eyes
https://www.mangago.zone/read-manga/i_have_no_health_bored_corona_kids_version/
https://www.mangago.zone/read-manga/a_way_to_protect_you_sweetheart/
https://www.mangago.zone/read-manga/the_broken_ring_this_marriage_will_fail_anyway/ also has a mature version
https://www.mangago.zone/read-manga/your_eternal_lies/
https://www.mangago.zone/read-manga/my_in_laws_are_obsessed_with_me/ on webtoon
https://www.mangago.zone/read-manga/predator_marriage/ smut too
Can anyone recommend me any similar stories to How to Get My Husband on My Side, I Thought It Was a Common Isekai Story, and Under the Oak Tree?