Based on Benito Cereno’s Twitter Challenge, and inspired by this response from Doc Shaner: seven member, all female Justice League.
Wonder Woman, Big Barda, Cassandra Cain, Black Orchid, Vixen, Fire, Ice.
I wanted Oracle and Black Canary, but I just assumed they’re in the Birds of Prey at the moment. Also thought about Power Girl, but it was between her and Barda, and Barda I think is more a team player. Between Wonder Woman and Vixen (and probably Black Orchid, who knows, she’s so mysterious) you’ve got magic covered; Big Barda’s Mother Box (with some help from Cassandra Cain being clever and again, probably Black Orchid) has science and tech covered; Barda’s the muscle, Cassie’s the brains; Vixen’s animal powers cover a whole lot of ground; Black Orchid is basically Superman and Batman rolled into one; Wonder Woman is leadership (on that note, why doesn’t she lead the regular Justice League? Aquaman is great and all, but he’s only come into being a King recently, and Wonder Woman has been a princess with an path to the throne her whole life, she has more experience).
As usual, bigger version on my DeviantArt.