Looks like there are a number of caregiving agencies in your area. Some well rated and some not. I tend to have better experiences with larger, franchised agencies such as Right at Home and HomeInstead but you have to do your own due diligence and feel good about the one you choose. Wish you well with your dad and with finding him the care he needs.
Take him to work with you :)
sign him up for voluntary work.. perhaps he can help someone in library, botanical gardens, etc...