For many practitioners this guide practical elements are a known product.  Building programs for social connection is for many youth workers the very heart of what they do.  But more than that this guide provides a practical set of surveys to measure social connection.  I have not seen a tool do this in such a practiced but nuanced way.  Take a look.

https://researchbank.swinburne.edu.au/items/bb86870a-57d4-4d27-905d-78ecbea5d0cf/1/