Usually anything silver I like best between electronics, although an interconnect manufacturer told me that copper was best between a preamp and subwoofer as copper does better with bass than does silver.
A friend in NorthCentral PA made his own silver interconnects, called them ‘Blasphemy ICs’ and were some of the thinnest most reasonably priced silver ICs I ever saw. They sounded phenomenal! I bought many pairs over the years, and then gave them to friends or sold them with the gear that I sold at the time. At one point, I was using all of his ICs in my system for several years, as I change gear pretty often. You don’t need to spend tons of money to get great ICs.