Yes, crossfit is a great way to meet people. Even if you dont start doing things outside the gym with them right away its a nice way to get some time hanging out with people with common interests a few times a week.

Do introverts like exercise?

Solo or small-group exercise—such as yoga, swimming, and small group training—or working out with a partner are typically the best options for many introverts. Working out alone provides enough energy and focus for the individual to have a successful workout.