Responses
https://www.mangago.zone/read-manga/death_is_the_only_ending_for_the_villainess/
https://www.mangago.zone/read-manga/confined_together_with_the_horror_game_s_male_lead/
https://www.mangago.zone/read-manga/the_one_within_the_villainess/
https://www.mangago.zone/read-manga/i_thought_it_was_a_common_isekai_story/
https://www.mangago.zone/read-manga/is_it_a_fortune_or_is_it_a_woe/
https://www.mangago.zone/read-manga/the_way_to_protect_the_female_lead_s_older_brother/ - manhwa is discontinued but the novel is complete
https://www.mangago.zone/read-manga/i_became_the_hero_s_mom/
I really like all of these and they seem to fit the criteria exactly
Good and I mean good villainess isakei.
Preferably completed
Also any good sites to read novel/ books for free