To find a TypeWell transcriber for a specific job, you can post the job need at the TypeWell job board, http://typewell.com/jobs. This is one way to advertise the position to independent transcribers in your area.
Second, you could try to find a transcriber through an agency. Please see the agency directory at http://typewell.com/jobs/agencies. That page lists agencies that provide on-site TypeWell transcribing services as well as remote services.