make 'zeros and ones' sound better, or that it somehow changes the bits...
There aren't any zeroes or ones going through a S/PDIF, HDMI (I2S), USB, or Ethernet cable. These cables carry analog signals.
A DAC is an analog to digital to analog converter.
The analog signal coming into the DAC must be converted or interpreted into 0s and 1s. The quality of this interpretation depends on a) correct timing of the signal and b) noise or inaccuracy in the signal that inhibits the accurate interpretation into 0s and 1s.
A S/PDIF cable is, by specification, 75 Ohms, but the precision of the impedence on the cable can vary and, very importantly, the impedence at the connector rarely meets spec because testing, if any, is done on the unterminated cable. The Belden cable that Blue Jeans Cable uses is just +/- 3 Ohms. And that is just the slop in Belden's manufacturing of the bulk cable. Blue Jeans publish no data about the accuracy and precision of their terminated
cables. I'm not knocking them. I use Blue Jeans coax as a baseline, and it is ok. But it's definitely not close to the best you can do.
Some S/PDIF cable manufacturers make the engineering effort and quality control effort to produce terminated cables that are actually 75 Ohm across the terminations on both ends. This requires labor-intensive tolerance control on the physical cable assembly (by hand and with component materials of better quality than a factory production cable sold at a price point to be "good enough"). This also requires careful hand termination and measurement of the final cable and rejection of cables that don't meet spec (e.g., increasing labor and materials costs).
Circling back to the question, I've been very impressed by the Stealth Audio Varidig V16. It's hand made to order in Maryland. Swapping that in for the Blue Jeans cable took the sound from enjoyable to excellent. When the DAC is getting more accurate 0s and 1s it makes a differend.
i've heard good things about the Siltech cables. The Siltech S/PDIF cable that is closes to the Varig in price is the "Classic Anniversary" but I haven't been able to find much about the testing or manufacturing precision. https://www.thecableco.com/classic-anniversary-hf-digital.html
The Cable Co. has some cables available for home trial (their Cable Library). Definitely worth checking out.