Hello!

https://www.mangago.zone/read-manga/life_senjou_no_bokura/
https://www.mangago.zone/read-manga/kimi_ni_wa_fureru_to_naru_toko_ga_atte/
https://www.mangago.zone/read-manga/jikyuu_jisoku_de_nani_ga_warui/

or you can try this list https://www.mangago.zone/home/mangalist/117812/

bestie im scared to read life senjou no bokura does it hurt a lot? :<

it's painful in the middle chapters but the ending is rlly bittersweet!! worth to read imo

https://www.mangago.zone/home/mangalist/839735/

Here's an album with these stories.. Basically childhood frndz to lovers...
https://www.mangago.zone/home/album/168420/