Books about an older woman without children?

I’ve realized I have read several books about older, child-free men reflecting on their lives in some way (specifically the books that come to mind are A Man Called Ove and The Five People You Meet in Heaven), but have never read anything with a similar vibe about an older WOMAN.

I’m wondering if anyone has any suggestions (primarily looking for fiction, but open to good memoir/nonfiction) of a good book, with a more or less positive vibe, about an older woman, without children.

by thewaffleirn