I have CB, FRS/GMRS and HAM.
FRS/GMRS is great for trail coms, and convo'ing. Everyone has at least one cheapo talk-about, or can pick up a cheapo set at walmart as a last minute purchase. I have a mobile setup, and its my preferred way of communicating on a road trip.
CB: is kinda of obsolete now.
Garmin In-reach: my go to, emergency communicator. Lets people know where to find my body.
My HAM radio is good for: bragging on the internet. On the world wide internet, it seems everybodys a HAM radio. In real world usage, not many people actually do. Since they are programmable, they would be great in a SHTF scenario. Thats the only reason I own one.