Overwhelmed and under experienced...

This post is in regards to power cables. Hoping for a bit of insight.
I’m relatively new to "better" audio. 18 to 24 months at best.
My system consist of Oppo 203. A Marantz 7012 with Voodoo Vision Digital. A Monolith 5X200 RMS amplifier (unit power cable is in question for) with factory cable. Tekton Design Impact towers for front channels and PSB towers for rear channels. SVS subwoofer with a Voodoo Powerwave power cable.
I run Morrow Audio MA2 interconnects and SP6 speaker cables.
With the exception of the Monolith being plugged straight in to a Cruzefirst receptacle in the wall everything else is run thru a Shunyata PS8 connected to the wall using a Shunyata Venom HC power cable.
My system is used roughly 50/50 for music and home theatre. Music is 95% steamed from Tidal using a Supra Cat8 ethernet from router to the Marantz.
I am currently looking to replace the Shunyata Venom HC I had been using for the Monolith amplifier that was moved to the Shunyata PS8.
Lately I have come across an overwhelming amount of interesting options. Everything from an individual named Marcus Tunis on US Audiomart selling Black Shadow cables (4 runs of mil-spec silver over copper with Acrolink poly rhodium plated terminations) at $300 for 3 ft. to a Lessloss DFPC original at $275 directly from Lessloss. A customer return he stated. Also on the short list is a Shunyata Delta NR at $625 new from Thecableco (my customer discount price).
There have been many others that I have read about. To many to mention.
Question is, how does one choose? I know AWG size isn’t everything. Geometry matters as well. Would I really notice that much of a benefit from the extra money spent for the Shunyata Delta NRs noise reduction? 
I’m overwhelmed!