The blusound node is a great start, but if $500 is too much for starters l would suggest the Dayton audio WBA31. It is around $50 at Parts Express. It has RCA and optical outputs. It supports Tidal, Spotify (paid subscription) and many others (not Qobuz) by wifi streaming.
Streaming virgin
I know this is a broad topic but I have to start somewhere. Up to now my source has only been my cd collection. I would like to get into streaming to discover new music. My current system is modest consisting of a Simaudio 340ix integrated and 260d transport. Speakers are Focal936. I currently have a Spotify premium account that I use with my Amazon kindle tablet and ear phones. I do not have a PC at present. So, where do I start? Will I need additional equipment ie computer, server, etc? I am pretty ignorant with all this tech stuff. I'm looking to get quality sound as easily as possible and if I have to spend a few bucks to do so thats ok.