@mattchanoff : how do you plan to stream? Do you subscribe to any streaming services, such as Tidal, Qobuz, and such? It looks like you have no interest in ripping your CDs and streaming them? I am assuming you don’t use Roon?
If only streaming from Qobuz Tidal or similar, IMO the easiest solution is a nice DAC, with built in streamer, such as this:
You will obviously need to provide internet connection to it, such as an Ethernet cable from Router or Ethernet Switch to the streaming DAC.
There are other brands, similar concept (I.e LUMIN others have mentioned). I agree that upgrading your DAC should be your top priority.
If you get a DAC with no streamer built in, then you can add a stand alone streamer, USB out to DAC, such a Sonore ultraRendu or microRendu (cheaper)