Hi @clipper and welcome.
Great question. Not long ago I asked members about pulmonary rehab for people living with pulmonary fibrosis. You can see Steve's answer here: http://mayocl.in/2nbVlMF (Note, you may have to wait 3-4 seconds until the link takes you directly to that spot in the discussion thread.)

I'm also tagging fellow members @timfair @steve1948 and @loisblo who have had pulmonary rehab and can share their experiences with you.

Clipper, while we wait for others to join the conversation, I think you might enjoy watching the stories Kate and Steven shared about the Harmonica therapy and the Breathless Choir for people with lung disease.
http://mayocl.in/2nsjVuI