What is a good second career?

The wife and I are getting older. We have been working for decades at this point. But we are too young to retire, and we had kids late. But one of us could totally switch over to a lower stress second career. Ideally something with benefits, maybe even a chance to get a pension. And since we still have kids, needs to be flexible. One of our kids has autism, so lots of random doctors appointment and stuff.
We both work with computers all day. What are some good options for a second career that doesn't need to have long term growth potential. We have 8 years where ideally both of us are working so we can cover each other with benefits if something happens. After that, the kids are out of high school at least. So it isn't like it would be a "short" term career/job. Just not a 30 year thing. And ideally, something that could at least partially be done at home.