As a person that planned well and took early retirement at age 55 rather than go to 62 (now 75) I had my own ideas.
These are just general irems you fill in your own details.
That consisted of both my wife and I having a good union pension and good SS benefits. Having dam good health insurance as the older you get the more important it is. Having no mortgage to pay makes things much simpler and easier! Last maintaining a good stock portifilo.
Good luck!