Reddit mentions of The Jobs Rated Almanac: The Best Jobs and How to Get Them

I can only say my experience doing the university thing and this is US based. Choose your major wisely... and finance it wisely (often masters you can get some support in my day 1/2 support, and PhDs should be free i.e. full support). Typically masters degrees pay and PhDs don't in the long run do much better than masters... PhDs are more an interest thing... do you want to do that or does your field need that. PhDs often start at a higher salary, but masters degree people start working sooner and can work their way up in the company. For full disclosure I did the PhD thing and I'm somewhat recently retired so my perspective has some age to it in US... I know less about now.

Once your working employers will often pay for advanced degrees like MBAs, or a masters, or some even PhDs. This is company specific of course and I'm speaking in US. This however can take a long time and be difficult -- both working and going to school.

Starting your own company. Not saying no... I use to work for a startup company. But what others have said -- it's risky -- and so it has to be what you want to do and you have to be prepared to work at it... i.e. most business fail on the first go and maybe many times. The old joke... the reason why most successful entrepreneurs succeeded is that didn't give up. In many businesses a hit rate of one in five for new projects is pretty good. So people talk about wanting to fail fast. The other thing I say about starting businesses -- if you didn't put in all or at least the majority stake of the capital you don't own it -- and your working for someone else... i.e. your a manager not an owner.

The other direction in the US that gets paid pretty well is the trades. Bottom line whatever you choose do something that is highly skilled so you have good negotiating power OR work your way up in management OR run your own business... my opinion these are often the best options in terms of being paid. They all have their own pros and cons.

Also don't do something just for the money... it has to be you too... but it's good to consider pay too. I often suggest as a strategy getting a jobs book like https://www.amazon.com/Jobs-Rated-Almanac-Best-Them/dp/1511528850 and just go down the list from high pay to low, and pick one the the higher paying jobs you like, think you can do, or can get the training for.