I’m 45 years old and am looking to semi retire. I have enough money to retire but would like to stay somewhat busy and also have health insurance. The job pay doesn’t matter to me but what matters is ability to take time off and most important for it to be low stress. I don’t want to think about the job outside the office as I will be focused on other things when not working. The problem with my job now is that it requires lots of thinking outside of work hours and is stressful. I thought about teaching but have been told it requires lots of work outside of job hours.
The answer is going to be really specific to what drives you, and what stresses you. Also, what your own career has been to date - if you don't have the resume for a specific job, it may not make sense to pursue it.
You mentioned teaching, that was the first thing that came to mind - you get a lot of time off, good benefits, etc - but clearly, it can be "stressful" to some people (ie if you don't like kids!)
Meanwhile, my neighbor works for the post office, delivering mail. He loves the low stress aspect - there's no way for him to "take work home" at the end of the day. Once he's delivered to the last house, he's done. He goes home and doesn't give work a second thought until the next morning. He gets to walk through town every day and talks to the same people on a regular basis - he's an extrovert so that's great for him! Good benefits (vacation time and health insurance) too.