If you haven't yet a good thing for every prepper to have is their Amateur Radio Licence. And that comes with a built-in community if you join a local club. You can even put your prepping skills to the test by offering your services in times of emergencies and helping the club to set up a radio network to help coordinate S&R operations
Good idea. I did actually pass the licence exam about 10 years ago, but never been near enough to a club to get involved. I need to invest in some kit and get back on that.