I’m rather old-fashioned in my ways, but one of the things that introduced me to different kinds of music is my library. They have an extensive collection of CD’s to take out for free. I just go and look through the bins of CD’s and come across artists and albums I have never heard before — even some genres of music I’ve never heard. Then I play them in my car while going about my errands, and in my home while relaxing or doing chores, and find that some I like and want to hear more and others I don’t care for. This helps me expand my music choices for things like streaming.
My older friend is more Tech-savvy. He subscribes to Sirius radio and has full choice of music that streams to his new-fangled car.