What's the best non-DAC streamer?

Haven’t tried most of the suggested items but I own an Yggy and used it primarily for the last 2 years with an Aurender N100H, I was satisfied until I tried it with a DCS network bridge with the AES connexion...
I was floored... Never heard the Yggy before... so much so that I decided to buy buy a DCS Bartok and move my Yggy to a secondary system, sold the Aurender and bought a Melco streamer, N1AH2/EX,  significant improvement over the Aurender IMO although not as  good as the DCS network bridge, but it fits your budget and deserves an audition.
 If you don’t have the new USB card from Schitt already go ahead and buy it it is a major improvement over the old one...

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.