Cliques:
Nerds
Jocks
Populars
Rebels
Stoners/Skaters
Loners
Extracurricular Activities:
Theater
Student Council
Sports (Volleyball, Football, Basketball, Soccer, Hockey, Swimming)
Cheerleading
Newspaper
Music (Bands are a staple of Degrassi mail me if you plan to make one)
Youth Group
(More options are available just message me if you have ideas that would work for a high school setting)