The Stuttering Foundation Website has a lot of great information about stuttering for kids, teens, parents, teachers, and SLPs.
https://www.stutteringhelp.org/

Did you know that James Earl Jones is a person who stutters? There are many more famous people who stutter listed on the website. Check it out! https://www.stutteringhelp.org/sites/default/files/FamousPeople.pdf