https://system.gotsport.com/org_event/events/33371
I'm more familiar on the girl's side, but U11 and younger, it had the top teams from mostly Southeast PA/Philly area. It has expanded and now has several NJ/MD teams.
Take a look at the brackets above to see the competition for boys at your age group. If you're in DC area, it will likely include quite a bit of travel.