The Center for Disease Control (CDC) has a whole page dedicated to sharing information and resources to support the mental health of people with disabilities.
NAMI is the nation's largest grassroots mental health organization dedicated to building better lives for the millions of Americans affected by mental illness. Check out their website for resources, training, information, and more.
National Alliance on Mental Health (NAMI) has a page focused on providing resources and information to support the mental health of people with disabilities.