I recall Becky Chambers’ “A Long Way to a Small Angry Planet” emphasizing the found family theme pretty heavily over the course of the story, especially non-traditional relationships. In fact, the ship crew’s relationships with one another forms the crux of the drama. Even though there are big “Important” events happening in the background, the narrative is focused on what those events mean for the characters on the ship, rather than what they mean for the galaxy as a whole.