Strong friendships between girls who do things in children's lit: (You probably know these already, but they popped to mind)
"A Little Princess", Frances Hodgson Burnett (resolution is passive, but much of the story is about girls' friendships, and the girls do act, within their sphere.)
"Little Women"
Maybe these don't fit your bill... after all, they're books for girls. But the "girl-things" are very real things, like working for a living, telling stories, helping people who need it, publishing fiction, starting a school, traveling to Europe, fighting and making up...
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(You probably know these already, but they popped to mind)
"A Little Princess", Frances Hodgson Burnett
(resolution is passive, but much of the story is about girls' friendships, and the girls do act, within their sphere.)
"Little Women"
Maybe these don't fit your bill... after all, they're books for girls. But the "girl-things" are very real things, like working for a living, telling stories, helping people who need it, publishing fiction, starting a school, traveling to Europe, fighting and making up...