Network Switches

@rivinyl is there a reason why you need a switch at all? 
In my opinion, invest in a better ethernet cable first. They make a difference.
You can also pick up an iFi LAN iSilencer on amazon and combine it with a better cable. I wouldn’t waste money on a $500 switch. Unless the switch reclocks the signal and throttles the output at 100mbps and your streamer prefers that speed. But now we’re talking $1000+ for a switch which to me once again makes almost no sense. 

You could try StackAudios Smooth LAN Regenerator. 

These modified switches not worthwhile, get all switch mode power supplies out of streaming chain, better cables, network filters, etc, all are better investments.

If you're worried about "ground plane noise" or other such nonsense made up by people determined to imbue digital audio with analog traits just because they understand analog on account of having been doing it for 70 years, whereas digital frightens and confuses them, the solution is simple and inexpensive. 

Use SFP for the last run into your streamer. Voilà! Problem solved.