A time travel fiction concept that definitely falls under the category of “things I didn’t quite realize was a sub-sub-genre” until recently is the “Don’t Meet Your Heroes” story (with the alternative addendum of “Or do, I’m not your parental figure”). Basically, a story where the main characters travel back in time, either intentionally or unintentionally, and end up meeting someone (whether a singular person or multiple people) who are on the eve of doing some thing instrumental to the timeline, and who one or multiple of the protagonists idolizes, with the grand reveal being that they aren’t quite the kind of person that history has remembered them as being. Under Fortunate Stars by Ren Huchings – March’s Sword & Laser book club pick – is a really great example of this kind of story.