Depends on the features you want. For social stuff? They're the gorilla in the room. But, the pure social stuff isn't gated (comments/posts/groups). For trai

Depends on the features you want. For social stuff? They're the gorilla in the room. But, the pure social stuff isn't gated (comments/posts/groups). For training analysis? TrainingPeaks, TrainerRoad, Wahoo Systm, intervals.icu, and others. Of course, some of those rely on Strava APIs to get data to/from devices.