Here are some links to the products I recommend on Amazon. You do not need to run out and purchase an expensive piano or keyboard if you don’t have one! Any decent keyboard with a minimum of 61 keys will do. As you advanced you can consider making a bigger investment later.
I recommend buying headphones for practice with a keyboard. It can be a great way to improve concentration. (AND save other members of the household from hearing the same songs played over and over again!)
My beginning course doesn’t require any additional books other than the PDF sheet music that is already included in the lessons. As you continue my lessons I use two beginner books by Bastien, look for the links below.
Here are some amazon links:
Black Book Level 1 https://www.amazon.com/WP32-Older-Beginner-Course-Bastien/dp/0849750296