hello please recommend me romance straight story where the couple have healthy relationship

http://www.mangago.zone/read-manga/miki_san_sukidesu/

[ this only have one ch. so far but its definitely refreshing to read it ]
http://www.mangago.zone/read-manga/watashi_no_koibito_wa_kyou_mo_kawaii/

[ not couple yet]
http://www.mangago.zone/read-manga/ore_ni_sosogasete_kudasai_okute_succubus_to_gochisou_miseinen/

[ Yakuza ml, surprisingly him and the fl communicate well although she was scared at first]
http://www.mangago.zone/read-manga/tsundere_yakuza_to_chippai_chan/

[ horimiya, you've prob read it]
http://www.mangago.zone/read-manga/horimiya/