I think that teaching classes would be interesting. I have a lot of industry experience, but I never actually got a degree in the field I work in, and I don’t have any sort of degree that deals with teaching. Is it possible to get a job as a teacher without those?
I got asked if I wanted to teach for teachers after studying half a year at university. It is an advantage, often a formal requirement, but in praxis not necessary to have a degree in order to teach classes. Personal qualifications on the other hand is a must.