Someone on one of these threads posted a link to a website which calculated the best age for married couples to retire. You had to plug in a few parameters, like "Full retirement amount $" and our ages. Then the site did a calculation which determines which age each person should retire for optimum payout, assuming a normal life span. Does anyone happen to have a link to that site?
Not sure about best age to retire, but this might be the best calculator for determining the best age(s) to start social security. https://opensocialsecurity.com/about