Hello,
there are actually so many unused Characters that I thought it would be cool to make a team consisting of cool, not so much used characters, who also have a interesting backstory etc. and let them form a team, who is not controlled etc. by the JL, Titans etc.
Just a real outsider Team living maybe together in a kind of old Hotel or on a kind of ranch...
I thought of:
Conner Kent (Leader)
Miss Martian (Co-Leader and Wife)
Jackson Hyde
Bart Allen
Kid Devil
Green Lantern Jessica Cruz
Blue Beetle Jaime
Traci 13
Static
I think they would really form a great Team and more important they are also interesting characters with great backstorys to evolve and are also very diverse