Here are some GLs featuring that!!
https://www.mangago.zone/read-manga/oshikake_nyobo_kodomo_tuki/ (MC and FL have a biological daughter together; fluffy and comedic)
https://www.mangago.zone/read-manga/ohana_holoholo/ (MC lives with FL, her ex-girlfriend, and FL's son from a previous relationship; heart-warming but angsty af)
https://www.mangago.zone/read-manga/ebisu_san_and_hotei_san/ (MC and FL practically raise FL's niece together; mostly fluffy iirc with a pinch of angst)
https://www.mangago.zone/read-manga/flower_of_youth/ (MC reunites with FL, her former friend and first love, who has a son; fluffy and a bit of angst)
I know this one but the story is so boring
The girl keeps saying she doesn't want a wife, the other acts like a kid and not a proper adult. O.o
Thank you for contributing to my collection. Sad they don’t make loads like this wonderful art.
We need more stories like this one, where main lesbian couple adopts babies. It's just too cute