Being great at something unglamorous can pay better than being average at something cool.

Crowded fields are crowded because they look good from outside, which means being average in one is worth very little. Work nobody is excited about has far fewer people in it and the same need for somebody excellent. Plumbing, payroll, logistics, repair: they are quietly well paid for exactly that reason. The glamour is priced in, and so is the lack of it.

Look at what you are drawn to and ask whether you want the work or the way it sounds when you tell people. Then look for the unfashionable thing you are already decent at. Getting properly good at that is usually the shorter route.