I've only encountered a handful by random luck. Then I went to the National Stuttering Association (NSA) conference and there were about 1 thousand just like us. My local NSA stutter support group has stutterers or course. I also randomly met people in our Discord Stutter Support Server and eventually met them in person. Our Discord server is a good place to interact with other stutterers from across the world, we have 1400 members in it. Link is in the sidebar.