Thinking of Starting a Spark Team

I figure that since I like to lead people and I feel I have a lot of knowledge to share that I want to start a Spark Team. It would be a fun thing to do, I think. My issue is that there are already so many teams, what will my team be about?

I have to look around and see what teams are already there and where there may be a need for a new one. If you have any ideas, let me know!