Hi! Web developer with a stutter here, I need your input.

Hi! Web developer with a stutter here, I need your input. I want to build web applications for people who stutter to help with fluency or speech practice. I have a few ideas, but I'd love input from you guys on what would be helpful to you. I think stutterers and people with speech impediments are generally ignored by technology companies, so there's a lack of tools for stutterers. I'd like to fix that. Whatever I build will be 100% free.