“Mostly interested in streaming Quboz, don’t care about Roon.”
If you’re not interested in ROON, then there isn’t a better choice than Aurender. I am a long time Aurender user, the Conductor app is very robust, well laid out and makes it a breeze to browse, navigate and curate your music off Qobuz and local storage.
Couple of considerations while choosing Streamer / DAC’s. If you choose N200, then I would pick a DAC that offers the best possible USB & SPDIF implementation. So before you open your wallet for N200, do your research on a DAC.
As far the choice between WiFi or Ethernet, consider installing a mesh network. Both WiFi and Ethernet over power lines are not the best options.