I usually direct people over to helteks because they are cheap and you can get 2 of them in the same box. For more info you can check out the official meshtastic site.
Or check out https://rootaccess.org/wiki/Meshtastic/rev447/#-quickstart
If you go with the defaults at least at first, you can see if its something you want to invest your time into. Worst case, you have a couple of these things you can give out to a couple of ham friends. You can go pretty deep with the hobby, but its fun (in my opinion).