How are most audiophiles going from streamers to DACS

I’ve got a Node 2 streamer hooked up to my MHDT Orchid tube DAC. As has been said, USB isn’t an option with the Node 2 and Toslink should be avoided. That leaves digital coax. I have RCA to balanced XLR. All of my interconnects are very affordable (direct sale only) entry level Silnote Audio out of Roanoke, VA. Top quality starting at $100. I’m very happy with their product and they have great customer service.

to KGBspy:

Actually the optical/toslink issue, unlike many sonic preference sin audio, is not a matter of opinion. It does not support high res; and the optical/electrical component plus the pulse spreading generates lots of potential jitter.  It is designed specifically for high electrical interference environments, and, according to lore, because Toshiba needed a differentiator.

Its great if you have lots of EMI floating around (TV sets for example).  It is definitively the wort otherwise For most it will sound fine I use it from my TV and love the results for involved movies of the symphony.

I connect a Cambridge CXNv2 streamer to a Benchmark DAC 3b via RCA digital coax.  I've tried about ten different digital cables and they all sound quite different from each other.  Buying one "quality" cable and being satisfied only works in a system that can't resolve the differences.    Experimentation with different brands will reveal the best for you.

I have the same setup and switched to a RCA coax, with a 1m Silver Solids cable. Cable is custom made and an inexpensive. Amazing sound and detail with that cable.

you can adjust your sound preference with your preamp/speakers and speaker cables

I find Ethernet is very good , and having a excellent dac
like The Bricasti -M3 dac with Streamer module option 
works great ,and even has a excellent Analog preamp section from their M21
if you want to run direct to amplifier ,it’s better then most any preamplifier under $5k.