Hello & welcome to our forum.

I don't know of any specific type of brace - I think a custom fitted one by someone really knowledgeable should work, I hope it does.
It may take adjustments and readjustments to get it just right.

We did have a fellow with winging scapula that had some ideas -I can't think of his name tonite..

I can look him up in the morning...if someone else hasn't posted his name or links to his posts.