Any way to post a group workout for others to join?

Is there a way/forum for me to create a workout, post it for others to see and register interest in joining me, and then run the session as a “keep together” group workout?

I love group workouts but they’re few and far between, and aren’t usually what I want to do that week.

My guess is that of the 3k+ riders riding at any one time, maybe 10 would be interested in doing the same workout as me, and with the “keep together” feature, we’d benefit form the general chat, and enjoy the social aspect of suffering together.

Any thoughts?

Thanks, JL