My other son was on the amazing team Lego Legion! They placed third in state and went on to place at an international competition in Arkansas! My son made great friends and really enjoyed being a part of the team!
In FLL each team participates in Core Values, solves a problem through a Project, designs a robot and runs it through the Robot Game. FLL is very open to homeschoolers. Our teams are based at our co-op. You can form a team with a minimum of two or three kids. You can run a team in your neighborhood in your basement. I found a great graphic that describes the program.
This is a great organization. It is not too late to join.