I use Open Social Security and NewRetirement's Social Security Explorer to look at filing strategies for a single woman and two married couples. Spousal benefits will only matter to the last case, in which one spouse has an earnings history that is lower, with a PIA less than half of the higher earning spouse.

https://opensocialsecurity.com
https://www.newretirement.com
https://finance.yahoo.com/news/spousa...
https://www.fool.com/retirement/2024/...

My standard warning: I'm not a Social Security expert. I'm not a financial planner. I have no initials after my name. So take these as entertaining ideas from one educated consumer to another. Always do you own due diligence and seek out a professional if you need one.