Power cord

https://www.thecableco.com/heimdall-2-power-cord.html

https://www.thecableco.com/specials/thunder-high-current-power-cord.html

sign up for the lending library, borrow each of them, keep the one you prefer 

Assuming you have the sound quality you want and do not want the tonal balance changed at all, I recommend a used AudioQuest Hurricane. High level Nordost are great … but at this intermediate level (for Nordodt), I would recommend the AudioQuest. This might be out of your budget… but 2meters sound better than 1 meter power cords. I use Transparent power cords on all my components except for my power amp… that is a Hurricane. I cannot recommend it enough. I would have gone with a high current Transparent but it was several times the price.

@audphile1 is absolutely correct.

Don’t buy any power cords you haven’t auditioned in your system!

Just because a set of cords sounds good in someone else’s system doesn’t mean it’s going to sound good in yours.

Ferrari or Lamborghini?

Have a friend or maybe spouse help you with some blind testing before you make your expensive decision (that doesn't affect the sound one iota).