Boy Scout Troops are looking for volunteers, and Emergency Preparedness and First Aid are required merit badges.
Start a canning group at your church.
Talk to your local emergency management personnel, talk to your local extension office, you may be surprised what is available out there.
In my home town there are 22 master gardeners who not only tend a local park but put on classes.
What you find may not fall into the survivalist category but it is certainly prepping training.