There’s a ton on aviation-related, non-flying jobs, some inside your airline. Operations management, safety, security, training, dispatching, depending on your skills. I’ve seen loads of pilots who lose their medical and always assumed they’d have one. Then, they’re trying y9 learn new skills, when they should have been doing so their entire careers. Be an LCA, learn the jobs done by the teeming throngs who make an airline run.
GF