Before this thread goes sideways, my suggestion would be to try 2-5 cable brands in your budget that offers return policy. What I hear in my system with power cables may not be true in your case. The short answer is, power cables do make a difference. To what degree, that is subject to so many variables….room acoustics, equipment, isolation and above all, our listening abilities to discern these differences.
For starters, look into cable brands like Zavfino, Audio Sensibility, Audio Envy and Triode Wire Labs.
Good luck!