Trust me, you will learn more about communities this week reading this article than any other.
https://journals.sagepub.com/doi/pdf/10.1177/2056305118815908
It’s an academic article, but far more readable than most.
Don’t worry about the complicated methodology, just take 20 to 30 minutes to read the background, read the analysis, read the results.
I don’t think anything has so closely reflected our experiences in building communities for clients over the years.