HDMI cable to utilize I2s Connection from LAIV uddc to Denafrips Terminator 2

https://wyred4sound.com/products/hdmi-pcocc-premium

That's what I use.  I haven't tried any standard hdmi cables. 

The I2S over HDMI format is frustrating because there really isn't a set standard for the pinouts that is adopted and used by every brand. Instead we get a bunch of different configurations to the point where you are only guaranteed compatibility when using the same brand for transport and DAC. 

Sometimes they don't work at all due to different formats. Other times I've experienced playback that sounded weird, or out of phase, or worked for PCM but not DSD. It all comes down to how each brand does their configuration. If I remember correctly I think Denafrips uses the same style as PS Audio and several other brands for I2S. So there should be at least some options when mixing brands. I don't know about LAIV yet though.

I would just try a regular HDMI cable that you probably already have laying around somewhere. See if you get sound at first, then listen for any distortion or choppy sound, that sort of thing. Then make sure you can do hi-res and DSD without issues. If all that seems to work then you've passed the test, and you might consider trying a nicer HDMI cable.

Obviously HDMI cable will work, I'd suggest using I2S cable for long term, this especially  if considering higher cost options. In consideration of costly material such as silver why pay for the unneeded runs in HDMI cables, 19 pins vs 8 pins/runs. As for sound quality, haven't directly compared HDMI to I2S. If more costly cables considered I'd suggest Tubulus, I use the Ximius.

You want to use the shortest cable possible. Typical hdmi cables might be fairly long.

I'm using a 0.5 meter Wyred for Sound cable that I linked above. It is supposedly designed for I2S and not simply a hdmi cable.  I thought the price was reasonable compared to a lot of other cables.