Like everything else in this hobby it's an experiment. I'd try some from a brand (or two or three) that sells direct with a good trial period. Triode Wire Labs gets consistently good reviews and one I'd definitely try. Best of luck.
Power cord replacement suggestions
If i were to delve into the fanatic behavior of replacing power cords, is there some concensus on where the most impact would be gained, whether on source, pre, or amp, or is it just different for every system and need to experiment. Thanks for any advice.