First of all, you are an AMAZING parent!! Second, your son is FANTASTICALLY AMAZING!!! I interviewed Sherrika Myers and she has an fantastic book and website. I'm going to paste her bio intro here: ‐----------- I’m Sherrikka Myers, founder of Every 1 Voice Matters and Lil Herbie. After witnessing my first grandchild struggle with stuttering, just as I did growing up, I decided to use the same technique I used as a child, reading, as the foundation for this movement. Growing up in a single-family household with limited resources, https://www.lilherbie.com/ ----------- Also, here is another great website: Https://helenrutter.com (She also wrote an amazing book titled "The Boy Who Made Everyone Laugh". There are also some great Stuttering organizations so Google them near you. Cheers