Glassdoors might help you with that information. But usually are things like plumbing, electricity or specialist jobs at construction.

The thing is that many of those jobs don't take apprentices. People want experts. So there is a shortage that keep wages high, but make difficult to join.

Also, the way to get a decent wage working at those professions is usually to be the owner of your business, since companies still pay low wages if they can get away with it.