can you help me narrow my speaker cables short list please?

If you've happy with what you have why not just buy a jacket to slip over them.

I’d get a white cotton sheet and cut it to the length of your cable and width enough to make a tube with enough diameter so your cables can be inserted through it, then take it to a local dry cleaners and have them sew them into tubes for a few bucks.  They’ll probably sound better too, ehem.

Or, alternatively you could just use some white heat shrink tubing made for electronics like this…

https://snapklik.com/en-ca/product/chanzon-40-sizes-heat-shrink-tubing-assorted-kit-ul-listed-2-1-ratio-1mm-20mm-diam-30mm-80mm-length-multi-color-black-white-red-blue-clear-yellow-sleeving-wrap-shrinking-2-to-1-assortment-172-pcs/0PR24PJ7J7W65

Either would likely be much cheaper than buying new cables, and you get to keep your current cables if you like them.  Just a couple ideas FWIW.

current ones are too short

I guess I could DIY a sleeve/ cover, amazon has tons of em