just an off the top of my head list, let's say 50 mile radius of Downtown Dayton.
HH roadwarriors, Ohio Hawks, Elevate, OFC Heat, Cincy Magic, Ohio Thunder, Doom, Firestorm, Pauer F/P, Focus, Legends, Ohio Power, Ohio United, MC Hammers, Cincy Static, Ohio Sting, Springfield Heat, Urbana Ramjets, WCH Cougars, Lady Braves, MC Blaze, Cannons, Liberty Blazers, Cincy Landsharks (may have folded), West side elite, Homefield sting, Tealtown Pride, Canes, Strike zone fillies, WL force, RBI Reds, Ohio Ultimates, Cincy Riverbats, Cincy Slammers, Ohio Attack, MV Express, Cincy Hustle, Thunder Elite, Ohio Fury, Blue Ash Bombers.
Not all inclusive or in any order. Just names i could recall.