I need some suggestions for my book.?

okay. i need help. i want to write a book series. i hope to be successful. i have almost everything ready for writing. i need a few things. there are three 12 year olds. one is caucasian-alpha/queen bee, one is african american-second-in-command, and a spanish girl-third-in-command. they live in calfornia. it will either be malibu or beverly hills. the african american girl name is Amari, the mexican girl name is Carmen. i need help with the caucasian girl. she has to have a super cute name that sounds like it fits a rich popular girl. and you know how lisi harrisson books are the clique? do you like-the league? if u dont, i have something else. and is it legal to have someone pose as the author of my book since im a minor and really want to get published by alloy entertaiment since it will fit those type of books. remember her name has to be 'better' than the other girls