Looking for best streamer without DAC under $3500

Stream with computer and good dac via hdmi
Or usb is fine both have way more bandwidth than any hi res file can throw at them 

Snafujg,
   I’ve got a Terminator as well and like you am curious about the I2S input. Currently running a Roon Nucleus usb and sounds great to me, but curious about I2S. Anyone see an upside to I2S over USB? Also, are dedicated streamers better than my Nucleus?  Not trying to hijack the thread but maybe the Nucleus is a good option for OP.

Not sure about "best", I only know I am using a NUC7i5 with the ROCK operating system (provided for free by Roon) housed in Akasa Newton S7 Fanless case for 7th Generation Intel NUC Boards. It was challenging building, but fun and if you can follow instructions very doable. If it looks too hard then Nucleus (same operating system and uses a NUC) essentially does this for you. I am not looking back (totally satisfied), just a solid utility (just need to turn it on) that works really well; around $600 all in.  https://kb.roonlabs.com/ROCK:_Getting_Started

I use a Linn with ethernet connection.
Great sound, some linn streamers are in your price range.

Sonos