Join a Youth Coalition!
XR, or Extinction Rebellion, is known for doing very striking, in your face, and overall really cool actions! They are more arts focused, and they are also a completely decentralized movement.
Sunrise does not have a huge youth presence, but they are trying to build one! They are focused very specifically on passing the Green New Deal, and lobbying politicians to get it done.
Youth Climate Strike
Fridays for Future
They are the primary organizers of the walkouts, and they organize weekly strikes on Friday. A fully youth-led grassroots movement! Focused on getting the word out, and disrupting business as usual! No centralized power structure.