stories with couples/characters that have communication? really need that, I hate the misc...

https://www.mangago.me/read-manga/konosaki_wa_futarikiride/
https://www.mangago.me/read-manga/paint_love_and_the_colors_will_bloom/
https://www.mangago.me/read-manga/iki_dekinai_no_wa_kimi_no_sei/

ah yes "rainbow city" (SA in chap 3, best to skip)
demon apartment

https://www.mangago.me/read-manga/hayaku_shitai_futari/ a masterpiece i swear, such a good healthy relationship plus the plot too!!