Well, you post seems to be coming from another here.
I believe, @jea48 , would be the one to answer, as he seems to know which outlets are SS and which are nickel plated.
If your budget is around $100 I’d go with a Maestro outlet that avoids plating altogether. If budget is higher I might consider Furutech with Rhodium plating, but all depends on what sound characteristics you’re looking for. I like more natural sound, which is why I gravitate to these two FWIW…
Best of luck.