Ethernet

I tried a blue jeans cable to compare it to my $1000 cable and I sent the blue jeans back once it got broken in (100 hours). I’m sure it would be a step up to cheap/free cables but lifeless/dull sounding compared to better cables.

When you get an Ethernet cable, it’s not the speed that you need, it’s the better terminations that the better cables give you. Audio throughput is small, remember a cd player spins at an avg 300 rpm with small data output. A cat5e cable would be fine even up to dsd. I have a top of the line audioquest Ethernet cable

As said get a blue Jeans cat6 cable. They are certified, that is really all you care about. A lot of cheap cables are not terminated properly. I used to make my own cables, still have the stock and tools. It takes a lot of practice to get all the little wires correct. 

If you are going to order a cable, get one from a computer store, get a name brand, like Belkin, or something. They will not be "cheap" but also not expensive. A 6ft cat6 cable should be around $20.

I have very good results with Supra CAT 8+ ETHERNET cable. The cable Made In Sweden, very good balance between quality and price. Different lengths available at eBay. 

In your home, most affordable switches and ports support 1GigE, as do cable modems and routers.  That's not to say the Internet provider will offer you that much bandwidth.  That's Cat 5e.  It's also probably 2x or more what you get from outside.  100 Mbit/s was also something like 10x more than what 96k/24 bit audio required. 

So, it's all overkill.  However, it's best to know your equipment's rated throughput, as bad/slow cables can cause your gear to keep switching speeds and/or disconnect.  So if your gear is 1GigE stick to 5e or better.  Use Cat 6 if your switches/ports support 10GigE.  Again, massive overkill for audio/video.

Check Zoerax cat8 5th gen on Aliexpress. Top quality at a good price