In this economy, if you had to re-train in an industry most likely to guarantee employment, what would it be?

If you had to take 1-2 years to re-train in a field that would guarantee employment in Toronto afterwards, what would it be?

Let’s assume that the person already has a generic bachelor’s degree.

Ideally a career that entry jobs are 65K+ and future potential earnings are 90K+

Does that exist?