New streamer, new to streaming

Hey folks,

This is my first venture into the realm of streaming and am seeking advice getting started.

I got a Hegel H190 a few years ago and just now decided to use the built-in streamer.

I have been streaming to it from my laptop via USB and appreciate the absolute convenience, education, and exposure to unlimited sources of music in so many genres.

Now, in a different listening room, my H190 is very close to the router. I connected an ethernet cable, did the firmware upgrade, and am ready to try the internal streamer.

Before getting into Roon, Tidal, etc., is there a simple app or online station I can try first? Something I can open up in a browser and have it stream to the H190 from the network?

Hope I am phrasing my questions properly! I know nothing about streaming.

Thanks!