Project management. PMP and other certs.
Chem E. But that is a good idea for coders.
I have been in manufacturing for all of my career. Never will be rich, but has been a good ride. Now I am in general management.
20 years as an engineer is a VERY good ride. At some point, they realized my team leading ability could be used better at a higher level, so the days of wine and song came to an end.