surviving romance - manhwa, lots of female friendships, maybe like a singular ship in here, also very interesting, probably the kind of story you’re searching for
all the rest are mangas if you are interested, but may not be exactly what you want:
Oshi ga Budoukan Ittekuretara Shinu - follows an idol girl group (where the friendship is), maybe like one ship in here
girl meets rock - has maybe one major ship, but the friendships here are pretty complex and interesting and appears a lot
skip to loafer - technically a romance, BUT the female friendships in here are touched upon a lot and are complex as well
Proud to be the Villainess: I'm Doomed After Stealing my Half-Sister's Fiancé and Having Her Banished - SISTERS. does have romance but mostly follows the sisters relationships
Meidea Reincarnation Theory - The World's Worst Witch - romance, but the fl does have a lot of nice scenes w her friends that i think r very sweet.
You the best with this one thank you
Manwhas where there is a focus on platonic female relationships (either sisters or just close friends). It doesn't have to be the main plot point but I just want to see more platonic female relationships that's not just GL or het romance.