Here are some individually addressable pixels in a fairy light-style string with a DMX controller to go with em; just power them all with a 5v supply.

Lights:

https://www.amazon.com/ALITOVE-LED-Individually-Addressable-Waterproof/dp/B01AG923GI/ref=sr_1_3_sspa?keywords=2811+led&qid=1576271480&sr=8-3-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyM1M2N1gyM082OEVMJmVuY3J5cHRlZElkPUEwNzQ3MDMzSUVTWEJVVjUxNU5XJmVuY3J5cHRlZEFkSWQ9QTA4MzEyNjExTEdHTVBQRjQ3WTA4JndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

Controller:

https://www.amazon.com/ALITOVE-WS2812B-Controller-Decoder-DC5V-24V/dp/B07F2V4WFV/ref=sr_1_4?keywords=2811+dmx+led&qid=1576271550&sr=8-4

Trying my best here - but you've only got two wires. I don't think those are addressable.

Is it these?

The controller you have in your computer has the data pins soldered, that's the D+/- pins. If you're looking for a complete controlled system, you'll want WS2811 or WS2812 lights, like these. (You don't need waterproof ones, those are just a quick lookup - unless you plan on putting them outside).

Another way to check would be to see what the output dc voltage/amperage rating on that usb plug is. If it's only 1A, they likely aren't adressable.

The board being used in your 'goal setup' appears to be a ESP8266 or ESP32 development board.

Can you link the guide you're following?