Ichi Ni no San!
https://www.mangago.zone/read-manga/ichi_ni_no_san/
The only one I can think of.
https://mto.to/title/140545-kimi-iro-parasite
Kimi iro parasite Raw
Not exactly the same since the girl also gets her own pairing, but I highly recommend this: https://www.mangago.zone/read-manga/faded_first_love/
"Kazoku ni narouyo" and its prequel, "Itsuka koi ni naru made". The first one doesn't have much of the girl in question but it works as context for the prequel.
https://www.mangago.zone/read-manga/kazoku_ni_narouyo/
https://www.mangago.zone/read-manga/itsuka_koi_ni_naru_made/
Do you guys know similar manga like this? Where there is a trio like this and 2 dudes end together? I mean girl and 2 boys trio