Historically religions have created a framework to give belonging and purpose. What can be done to create the same community 'glue' without creating mythology?? I wait with interest to hear your thoughts.
If science gave truth related to the human need for meaning and this pursuit, perhaps we could gather around this idea.
I don't think you really do have to 'create' it because that seems like making something happen rather than waiting to see what happens -I have been in group s where we wait for some spontaneity to arise without pushing and its interesting usually a lot of laughter to begin with - Like that saying 'don't push the river it flows all right by itself'! stay in quietude for a while and something will arise