Best small travel cable organizing system?

It’s overkill and expensive but it’s built like a tank and will last forever. That’s a MBP 16" behind it for size. You could probably fit everything in the drawer in it. I use mine 1/2 for cables/dongles 1/2 for the things I like to have in my bag (paracord, shoe shine buff, wet naps, instant coffee, disposable towels, etc.). Perfect travel kit, drops into my briefcase or backpack without an issue. .