As another has said, strengthen your local ties. In the event of a collapse, we’re all going to be affected in one way or another. I think the biggest thing is fostering a culture of cooperation rather the competition. That means avoid prepping, avoid emptying store shelves, avoid hoarding goods en masse in your basement or shelter.

I think a good first step would be to look for local mutual aid groups. Just Google your town or state + “mutual aid”. These groups are already out there directly servicing those most in need, and are the most ready to spring into action when a disaster strikes (here is some testimony about mutual aid group action during Hurricane Helene)

Oftentimes these groups are open to volunteers or donations and will be active during natural catastrophes, and I’d imagine economic ones as well.