Help me with my Jonas Series!!!

Idk wat to do!! should I have nelena, niley, nemi, jaylor, jemi, jamilla, kanielle, kandy or they just be single, plz help!!! If u have any other ideas plz comment or message and tell me=) and if I use ur idea in my series i'll give u credit. (also I just want to say if someone gets most of the votes in this survey, i could still veto it. unless its like alot then I won't,o and also I kinda want to end the series at like chapter 40ish or so, so no crazy ideas that would take a long time.)