There are no formal lists I’m aware of. I’d go into the workout player and probably sort by the focus (like 1min/5min/20min etc) and pick one that felt similar enough.
Happy to help do that. The coaches will have a better idea obvs … so if you throw out what the first ones are as a specific ‘what could replace these workouts’ question they might pick that up.
In the meantime - good call adding this is a feature request. I think I replied on another post today. Feature requests make it really clear what people are really keen on from a development point of view. If that wasn’t you then apols - was similar subject.