YMCRLUX 1"x16ft Hook and Loop Straps with 25 Metal Buckles, Adjustable Fastening Cable Straps, Cut-to-Length Cinch Strap, Reusable Nylon Securing Cord Ties for Organizer or Storage, 1 inch Wide, Black

I just picked up a roll of this velcro tape to attach things to things. I think it'll help make non-adaptable bags adaptable. If you find a bag you like with some hardware in the right places, this could replace the straps?

https://a.co/d/06fqA2Jr These are nice reusable straps you just cut to length. Cheap, you’ll get years of use. https://a.co/d/0gehEX0S These are a little more expensive, but they really make a mess look immaculate. They hold about ten wires easily. Good practice is to keep your signal wires separated from power wires. When you’re doing power, do that as a separate operation, wrap, strap. Then do signal wires. If you need to hide extra length inside a cable wrap, it’s entirely possible. Generally the goal is everything up off the floor. We have pet rabbits, so we can’t leave things down for them, they are efficient cord cutters.

Add a strap using the middle bungee loops on the front of the bag with some C clips and webbing. https://www.amazon.com/dp/B0CMQX61MK Edit: easier strap setup with running 1 inch velcro between the C clips. It would let you adjust the strap for how full you pack the bag. https://www.amazon.com/dp/B0B7XX9MBV