Here's a resource that may interest you:
https://www.usedcable.com/about-us
Look into their Cable Library, with regards to the rental/audition program and how you can test cables in your own system, for a mere pittance, compared to their original purchase prices.
Anything spent on such a rental will be applied to purchases.
At least: that's how it used to work, over the decades I dealt with them.
Happy listening!