it there is still some hearing I might work on some hand signals training if you have voice commands to sit stay come etc. flicking lights on/off can also get attention. stamping floor for vibrations.. They adapt pretty well, and sometimes it helps as others have said with barking and fear of storms, fireworks.
My dog has been deaf now for a at least a couple, she is 16. Now her sight is mostly gone as well, she navigates my nose and memory for the most part. She gets a lot of help with being carried on the stairs and if she gets 'lost" in her little fenced yard area.