To listen to radio Say, Listen to radio or list radios or Play radio stations. Radio is the important word to use. To listen to stations from a particular area say, Listen to radios in Essex. To listen to stations broadcasting particular topics say, Listen to radio stations about sport or Listen to radio stations About folk music.
Stations will be presented in a list, first those stations with a number as part of the title, then the rest alphabetically. There are a very large number of radio stations available, so in order to make searching for your desired radio station easier you can now say, Next starting with A, to search for the next radio in the list starting with the letter A, or Next containing music, to skip to the next radio station which has the word music in its title. You can also jump around the list by larger numbers of items by saying, jump forward 30, or, jump back 12, and so on.
To choose a particular station say, Listen to radio BBC Radio 2 or Listen to Radio classic FM or Listen to premier Christian Radio, then choose from the list.