First, I'm assuming you've pursued all medical avenues, union aeromedical, AMEs that specialize in SI, etc? There are some very good AMEs out there that know their stuff and know exactly what buttons to push in OKC to make things happen.
Second, I certainly echo management, sim instructor, etc. You also are qualified to sit for the dispatcher certificate with all your 121 experience. I have an uncle that spent 20 years in military aviation followed by 20 years as a ROTC instructor and he just fell into an adjunct professor position with ERAU. All kinds of possibilities out there.