yes, I figure that a support group for caregivers is a support group for caregivers.....wouldn't matter all that much what the disability was. I know sometimes hospitals will have such groups, loosely facilitated by someone on staff, or with no facilitator at all.
You could also start your own. Ask the folks at the hospital nearest you if they have a room they would let you use once a week for 2 hours, or whatever you want, make up a few flyers and post them at the hospital if they will let you, and put it on whatever local social media you use. If the hospital doesn't have a room, ask your local library if you can use a conference room there. Most have rooms they will allow a group to use. Another way to start a group would be to make it a "Meetup" group, and then it would be advertised online.
You wouldn't have to be the big leader or anything, just welcome people and suggest that you go around in a circle and talk about your situation. I bet it would develop from there.