Potentially Starting League in SE Pennsylvannia

Teams and Leagues
I work for a Sports Complex that currently runs Roller and Dek Hockey, Lacrosse, Indoor Soccer, Flag football, Volleyball, Cheerleading, Karate and Basketball Leagues. Our indoor facility is perfect for dodgeball. We have 2 Sportcourt tiles Volleyball courts and 1 Astroturf walled in practice field.

We are currently trying to determine which balls and rules to go by. We may end up doing out own House rules.

Anyone have any suggestions to get started or how to acquire enough people to house teams? Thanks