How are most audiophiles going from streamers to DACS

+1, @rbstehno,

i2S (RJ45 or HDMI) is the way to go! Once you hear a i2S capable DAC / Streamer setup, you wouldn’t wanna listen to anything else. You just to need to make sure your network is up to the task :-) 

Back to OP’s query, given his components; I suggest SPDIF cable from DHLABS and Supra Ethernet cable from eBay. 

https://silversonic.com/products/digital-cables/d-750/

https://www.ebay.com/itm/Supra-CAT-8-ETHERNET-cable-1-meter-Made-In-Sweden-THE-BEST-FOR-NETWORK-AUDI...

Ditto the USB advocates. When in doubt, start USB. There's a reason Aurender and Cocktail offer few if any other connections. True, all streamers and all DACs are different, but let the default choice be USB and regard that as the norm from which your components may ultimately be found to deviate.

I have the Denafrips Ares 2 connected by the coaxial with a decent 75ohm cable, far superior to the fibre optic connection which I also tried, but once I get a better streamer with usb out I will go that way.

ps they are a fantastic DAC, you won’t be disappointed. 

why not ?  i think it is the best possible solution