iPhone radio is fine I guess. But you will need a robust data plan to keep that running while you are in the car.
There’s a few radio stations I would consider listening to if I could stream anything (especially archived, vs. live) from the web in my car.
But the songs there aren’t “new”, just some of the music may be new to me.
And I have never in my life turned to radio to find the records and bands I would track down the rest of my days.