The best source for info is Evans Designs who stock a great selection and are super helpful if you have questions. All their items already have the electronic stuff I don’t understand (resistors and whatnot) pre wired so no figuring out boards, soldering (unless you want to for stronger connections) etc. See their info page here, with tons of tutorial videos at the bottom of the page: https://evandesigns.com/pages/tips-for-using-leds. Can’t recommend them highly enough! If you can match red to red and black to black and twist wires together, you can do it.Looking good. Do please share how you use LEDs, that's one aspect I would really like to understand better.
Wow! It's so ... magic!