How to listen FM radio via HomePod

Here are the options I know of:

• I’ve seen in my Apple Music the category of radio that includes “local broadcasters”though I’ve never used them. This is the only way I know of for native HomePod “FM” radio station listening. But I don’t think(?) that’ll include any of the FM stations in your area.
• Play streamed radio stations from the web or via an app on your Apple device, then airplay it to your HomePod. This should allow you to listen to your local FM stations if they stream their broadcast.

there may be other options but these are the only ones I’m aware of.