Asking out of genuine curiosity: What defines an ADHD friendly tutorial?
Might be easier for non-ADHD developers to help find what you are looking for if we know what to look for.
I have ADHD. I also wonder about this.
I take my time digesting the content. Mainly this is because I process text slower than average. I always prefer short sentences. For long sentences, I split them up and interpret each part.
Books for kids are usually written with short sentences. Maybe tutorials "written for kids" might be an answer? But that sounds condescending. So maybe it is not the answer?
Finally I will add that I firmly believe this. It is more about "how you consume the content" and less about "how the content is made for you".