What's the best non-DAC streamer?

Doug,

Now you have some good brands to consider.
But first you need to determine which features
really matter. Roon ready makes sense for ease
of use, finding new music. Do you want Tidal, Qobuz?
-no one mentions Amazon as it is apparently somewhat
inferior currently but I think that will change.

No one has mentioned Bryston BDA3.  Sounds superb and has great connectivity and Customer Service.  The weak point is the App, but if you are streaming or using Internet Radio that isn’t as important.

The Lindemann Bridge is very capable and gives you Bang! Roon ready.

The Innous mentioned above with Roon is fantastic. Make yourself comfortable with the Roon eq. and have a big sound upgrade.

My personal experience with the Lumin D2 is unfortunately a dark and boring sound. Thought it was broke compared to a Lindemann + RME ADI2 combo.

If all you want is to stream Tidal and Spotify use a raspberry pi4.

djones51 +1

Backing up djones51, Allo Digione, Digione Signature or Volumio streamer are really outstanding for the price. Digione could use an aftermarket LPS. Not sure, but I think they sell their own as well?
Have everything with the exception of MQA, and Digione has been touted to surpass the Aurelic line. I’ve got the Allo Digione and do not see the need to move up at this point. Every thing else I do to my system just keeps revealing just how good it is.
But if you’re Looking for next level, some of what was mentioned above should be outstanding. My point is that the RPi4 or relatively cheap mini computers with galvanic isolation are often overlooked while providing directly comparable results - if you’re willing to tweak a bit.