Don't want to sound too cynical but a job is a job at the end of the day and life is more complex. Just blaming the boss for all the misery is a bit too easy.
I expect to get downvoted because more people reading here have a boss than the other way round (I guess).
There's no magic bullet; each employee is different. Sure, it's not always the boss, but a good boss does what they can to help improve that. There's two things a manager needs to do to be successful - achieve the goals you and the company have set for your team, and keep your good people. If you achieve goals but your team leaves, you haven't done shit. You've lost the game and played yourself.
For example I've never actually had any "career development" type discussion with a past manager. This manager makes sure we have those discussions and then actually tries to put me on project where I can learn skills to help me advance. On top of that I found out she actually gets reprimanded for having these meetings but she fights back saying that it's necessary, and it really is. We have huge turnover and her manager wants her to put less effort on employee satisfaction and career development.
If you want to start looking for examples, start visiting different fast food places or smallish chain stores, such as pharmacies. Regularly. You can tell a difference between the ones with a good boss and a bad one by watching employees. Sometimes you can tell that one supervisor is bad using the same metrics.
If you are still unsure, go out and get one of these jobs. Then transfer and see how it is run differently.
These are the same jobs, but have differing satisfaction levels.