This is a Facebook group that focuses on Power Zone training. I signed up for one of their six-week challenges a few weeks ago (completely free). Basically they structure these challenges to build your FTP. There are raffles for prizes and the community is super-supportive. I really like having the structure of which classes I should take.



If you participate in a challenge, you have to join this website, where it synchronizes the data from your Peloton rides and provides graphical feedback. There is a premium version (I'm just on the basic version).