So I need some yaoi mangas with stepbrothers to lover or stepbrothers to enemies to lovers

Into the Horizon. It got some gaslighting things

Love or hate
Placebo

Home sweet home(bori)

https://www.mangago.me/read-manga/ichiban_chikaku_de_koi_o_suru/
https://www.mangago.me/read-manga/charao_kun_to_haraguro_kun_no_himitsu/
https://www.mangago.me/read-manga/brother_x_brother/
https://www.mangago.me/read-manga/toshishita_no_ryuugi/
https://www.mangago.me/read-manga/brother_ougi_yuzuha/
https://www.mangago.me/read-manga/melancholic_trickster/
https://www.mangago.me/read-manga/zankokuna_kimi_to_tomoni/
https://www.mangago.me/read-manga/bomb_heaven/
https://www.mangago.me/read-manga/familiar/
https://www.mangago.me/read-manga/zutto_issho_ni_kurashimashou/
https://www.mangago.me/read-manga/gokudou_darling/
https://www.mangago.me/read-manga/netsuai_naono_bohra/
https://www.mangago.me/read-manga/ani_to_wa_koinaka_nandesu_ga/
https://www.mangago.me/read-manga/3_pun_instant_no_chinmoku/
https://www.mangago.me/read-manga/amai_sokubaku/
https://www.mangago.me/read-manga/kyoudai_no_rule/
https://www.mangago.me/read-manga/nikushoku_danshi_to_soshoku_danshi/

Twin step brothers (SHORT THO)

^^^ https://www.mangago.me/read-manga/eunsoo_s_good_day/

Girl-