Ethernet or WiFi. Get a stand-alone interface, DAC or server with Ethernet interface, either a DLNA endpoint or a Roon RAAT endpoint.
Best SQ I have found is using Twonky or Minimserver using Linn Kinsky to a DLNA endpoint. I have designed 6 generations of USB interfaces and Ethernet is better. Here is a recent comparison I did:
http://www.audiocircle.com/index.php?topic=155232.0
You can use any computer, Mac or PC to stream to a DLNA endpoint.
You can also get Roon Ready endoint devices and stream to them from Roon software.
If you don’t mind a little DIY, you can get a Raspberry Pi board and a SD memory card on Amazon.com and a Digione Hat board and have a DLNA or Roon endpoint in an afternoon for about $150. Everything you need to know is online. This will output S/PDIF to your DAC.
If no DIY talent, then get a Sonos Connect and a Synchro-Mesh reclocker to drive low-jitter S/PDIF to your DAC. You can use Roon, Twonky, Minimserver, Sonos and other software to stream your music to the Sonos. you can stream Tidal too.
Steve N.
Empirical Audio