In my experience, everyone agrees that finding/forming a self-supporting community is the way to go.
I have yet to hear of even one “survivalist” community that started out on purpose and has remained viable long term. They probably have really good OPSEC. Either way, they don’t advertise.
I recommend people decide which scenario is most probable for them (Restriction Scenario [like I described above], or complete Self Sufficiency). Each will require you to locate / re-locate to a specific type of community or geographical area so you’re already in place when it comes down.
Remember the first rule of being a refugee: Don’t be a refugee.
RS communities are most any small town at a reasonable distance from major cities off the major interstates and state highways. The best ones are those that have some sort of critical capability / infrastructure that FEDGOV will consider a priority for preservation. Examples include major telecommunications hub, grid intertie point, power plant / wind / solar farm, oil/fuel storage, refinery, rail hub, food distribution warehouses, etc.
SS communities require adequate crop land to support their anticipated population, surface water and a pump-free water distribution system for crop water, terrain amenable to defense, infrastructure that can be converted to house new arrivals and support new operations (strip mall, hotels, motels, single story office buildings, etc.) an adequate population of horses and cattle/goats/chickens (a diverse base for successful breeding), and a like-minded population.
RS communities are easy to find, and usually don’t require a substantial career change to find gainful employment for now. It will also be easier to integrate because they are naturally more diverse.
SS communities are scarce as hen’s teeth and require independent wealth to move there if it’s possible at all. Most all viable land/housing in a SS community is/has been owned by established local families over several generations.
Either way; choose carefully.
But choose. And move.