Every time I read the title of the thread, I think of Carol and then Starfire.
But she's just barely been used in that capacity, And the first time she ever was, it was a fluke because Starlin wasn't allowed to use Wonder Woman in Cosmic Odyssey.
And that's not really recent.
As for Kamala...
DC hasn't really been trying in that area until recently.
Well, except for Stargirl. But with Geoff less involved, I doubt we'll see her turn up until it's to be cannon-fodder in an event.
Batgirl of Burnside was a start, but she was an established character.
Khalid Fate didn't quite hit it off with the readers.
Jaime Beetle had a bit of a push with the Brave and Bold cartoon, but he didn't catch on, either.
I think Naomi is being groomed to be DC's Kamala/Spider-Gwen/Squirrel Girl, and I suspect that as long as Bendis is at DC, she'll get a lot of screen time.