https://justlisten.nativedsd.com/albums/just-listen-1-compilation
You just may have to sigh up with a free account otherwise all the samples are free.
Oops! I don't have a quad-rate DSD DAC anymore, the Oppo HA 1 could do it, all the ones I have now are double rate.
I can tell you that if I try to stream two DSD 128 streams simultaneously over USB it starts cutting out, but that is with or without the Wyrd in the chain.