Which server / renderer to buy?

I listen mostly to rock and jazz using a Rogue Audio Cronus Magnum with KT120 power tubes.  I listen to both vinyl and digital.  My digital streams my music library or Tidal via ethernet CAT6a from my iMac to a W4S modified SONOS Connect thru a Schiit Audio Gungnir Multi-bit ("Gumby") DAC.  My speakers are Spatial Audio M3 Turbo S with a Paradigm sub.  My room is 17' x 24', but I listen close up - 10' from the speakers / speakers 3' from the wall.  I'm considering an upgrade of the SONOS because I would like to stream hi-res and have greater capacity (my library is larger than the SONOS metadata capacity).  I'm thinking about the Aurender N100H.  Any suggestions?  Thanks.