[pdubs1]

If you're in the USA, you're in luck-- We have data to demonstrate whether or not that occupation, this, that, or the other... is a good choice--

Behold: The Bureau of Labor Statistics!!!

10 Fastest Growing jobs in the USA--

https://www.bls.gov/ooh/fastest-growing.htm

IT Security & App Developer occupations have approximately 30% growth rates over the next 10 years.

Wages and projected openings by occupation--

https://www.bls.gov/careeroutlook/2019/article/wages-and-ope...

IT & Computer related occupations, in aggregate, have 250k-300k openings each year in the USA.

(Note: You can find those other occupations in the 2nd link-- it shows wages vs. job openings for many types of occupations)