Not all are great reads, but I guess it all depends on preference. regardless, here ya go
happy reading
httpp://www.mangago.zone/read-manga/everything_was_a_mistake/
http://www.mangago.zone/read-manga/endo_and_kobayashi_s_live_commentary_on_the_villainess/
http://www.mangago.zone/read-manga/otome_game_no_hametsu_flag_shika_nai_akuyaku_reijou_ni_tensei_shite_shimatta/
http://www.mangago.zone/read-manga/the_evil_lady_s_hero/ this is a weird one where the heroine simps for the villainess but villainess wants nothing to do with her. 5/5
http://www.mangago.zone/read-manga/i_raised_cinderella_preciously/
http://www.mangago.zone/read-manga/miss_not_so_sidekick/?vYbQ
http://www.mangago.zone/read-manga/trash_of_the_count_s_family/?0BX7 (not a romance but falls under same category)
can anyone pls recommend me more isekai where the villainess ended up being good friends with the heroine like this?