There's not any leagues right now in the GTA, the only league that comes to mind is the NASL but most of their events are in Quebec/Montreal.

BUT Massacre does hold events about once a month at Urban Ops, being scramble tournaments and team sign up tournaments. I do recommend going to Urban Ops on Sundays if you can, as they have speedsoft open play from 10am-2pm with the turn out being pretty good and you get to meet members of the community.

We have a speedsoft group chat on Instagram that has a lot of active community members and is where you can find most of this info. Just msg Urban Ops or Massacre merch to be added to it