Many have abandoned CB for GMRS, truckers for example. A lot of outdoors use, hikers, off-road (jeeps, ATVs etc). Neighborhood watch groups for emergency comms etc. A lot of preppers are interested in it for obvious reasons.

There are repeaters all over that expand the effective range. Each repeater has its own local culture. Frequently they will have regular “nets” radio meetups to discuss various topics determined by the group holding the meeting.

You can get a cheap gmrs handheld and a license very easy. It can also be a gateway to the world of ham radio.