Student, Claremont High School, Class of 2016,
Claremont High, like many schools, is quite sports-centric. Clubs, unless if they're offering easy volunteer hours, are often overshadowed in favor of sports teams.
The top three extracurricular activities at Claremont are: - Soccer - Football - Cross-Country/Track
If someone's not the athletic type, it would likely be better to participate in an interesting club , or ASB to make decisions for the school.
I would recommend cross-country as a sport. Many people participate, so there are plenty of opportunities to make friends. As for a club, choose one or make one that suits your interests.