How to find a project manager with WCAG expertise

I run a SaaS software company and we will soon be onboarding a new client organization with a few users who have visual impairments. We intend to invest seriously over the next 6 mos to make our system compliant with their assistive tech. To get there, we want to bring in a project manager to organize/oversee the necessary dev work, QA it, and orchestrate acceptance testing with our users. Ideally this person would be an assistive tech user themselves as well. But when I search for "WCAG project manager" or "CPACC project manager" I get a bunch of SEO junk. Any tips on how to find someone great with experience?