For 28 teams: BBL north, Jersey Express south. You can also do some of the PA teams. Rough Riders has some NJ kids on 27. I have no exposure to RR for the 28's. Overall 28 have head count numbers less than 25, 27, 29 so most clubs have a single team. Depending on what you are looking for. AA see above, single A team you have more options. What position is your son?