Im trying to make a documentary for singers with stutters....

Im trying to make a documentary for singers with stutters.... Hi live in Los Angeles currently, from Japan, 20 years old, I am trying to make a documentary about singers with stutter. I have had stutter since I was 3 and have dealt with it for my life, and lately Ive realized how fascinating it is that people with stutter sing without stutter, and how they seem free and beautiful. I want to interview a few adults, and kids with stutter who loves to sing. and also scholars and doctors. If you have any people you know that might be a good fit, or any sort of idea, please throw it out here. Any leads would be very very helpful.