[The Real Slim Shady]

Well that didn't really help much with pinpointing the one I should buy

There's a dozen major brands and hundreds of devices that will run kali just fine. Linux is not a mystical magical operating system that will only run on a couple of platforms. So buy the best one that you can afford. Just about none of them will have the wireless chipsets that you want though which is why I pointed out you will want to seek out a proper wifi adapter or two.