I've dabble a bit with Mighty Networks as they offer similar features and services as Circle. It's not bad if you have a community set up or in the midst of rapid growth. I found it to be useful for those that offered courses as well as keeping the community organized within one spot and, its not a Facebook group.
Just looking back on their prices and wow, they have increased the pricing of the Community plan by like $20 per month to $50 per month.
Just looking back on their prices and wow, they have increased the pricing of the Community plan by like $20 per month to $50 per month.