Cybersecurity Educational Resources : https://github.com/CSIRT-MU/edu-resources

Web search / check out what other college cyber security clubs / national organizations are using/doing//hosting!

Affiliating a club with a national parent organization(s) may also provide additional resources.

a few links from sites via "cyber security club activities" web search:

   https://www.cyber-fasttrack.org/cyber-collegiate/
   https://nationalcyberleague.org/
   https://www.sans.org/mlp/cybersecurity-training-community/