Which power cords have high resolutions and separation??

Get an engineer’s perspective.lol 

Well, that depends on the engineer. I prefer the perspective of Hans M. Strassner, Garth Powell and Caelin Gabriel. 

My answer to the OP would be High Fidelity or Silent Ssource MR. May be able to get in your price point used.

I have all Wireworld Silver Electra 7 cables with reference ends on all my gear, i am very happy with the overall sound. My dealer gave me 3 different Wireworld power cords to try for a week, and i found the one that suited my ears best. 

On my second system, I have a mix match of cables, I have slowly started to replace them so they are all the Same. Find what suits your hearing and room, end of story. 

@clearthinker We are eagerly waiting for the list of "fancy" power cords you ACTUALLY TRIED. It would help tremendously to give credit to your affirmations.