My first connected online learning experience was University of Liverpool Masters degree with https://www.ohecampus.com/
For half the part you would work on your own deliverables. But for the other half you would join in groups (which you formed yourself based on common interests, personality and timezone).
It was a great experience and really encouraged team work towards a common objective - that you often helped form yourself. It gave you flexibility while learning the course material and being graded.