If you can find a Aurender N100C used that would give you the best digital sound quality among the three choices you mentioned above.
Having said that, you can also look at Bluesound Node 2. I can’t think of anything else currently available that provides a better value and sound quality under $500. Node 2 has a digital coax output for connection to your existing DAC’s. The Bluesound app is very similar to SONOS app and you get the same flexibility to stream from Tidal, Deezer or Spotify.
Node 2 also has a very decent internal DAC so you can go direct into your pre through its analog outputs. By using its analog output, you can experience the MQA files from Tidal streaming but I believe you may prefer the sound through Reimyo or Chord DAC over its internal DAC.
I currently own Vault 2 which gives me two distinct advantages over Node 2. First, It allows me to rip my rare CD’s to its internal hard drive. And secondly, I get to browse and download high resolution files from HDTRACKS straight into its hard drive. All through the blusound app. No external laptop or computer needed.
Good luck!