The best replacement for cb radio is walkie talkie.

The best alternatives to cb radio are rated as following:
★★★★★  walkie talkie
★★★★  ham radio
★★★  10 meter radio
★★★  scanner
★★★  vhf
★★  ham
★★  2 way
★★  gmrs
★★  marine radio
★  two way radio
★  two way
★  uhf
★  vhf radio
  police scanner
  10 meter
  rocky theme tune
  2way radio
  gmrs radio

Your alternative for cb radio is not listed? Suggest!
Speaking about cb radio, one probably shouldn't forget about police scanner.

Other search terms related to cb radio and their ratings are:
★★★★★ police scanner
★★★★ pa system
★ high and low channels
You have in mind a companion for cb radio and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of cb radio in all years. Click on graph for more.
cb radio
walkie talkie
ham radio