Two or more time travelers who each think they’re the only one and keep getting in each other’s way
Self-Inflicted Time Loop where the only thing keeping the loop from breaking is the protagonist’s stubborn refusal to accept a less-than-perfect ending
So many people of so many different alignments/factions went back in time that future knowledge is essentially meaningless
The time travel happened in the backstory, involving a character who is not the protagonist of this story. The changes caused by that are what kick off the real plot
An Alternate Universe story that reveals at the end that the world/canon as we know it is actually the result of these AU characters attempting a time travel fix it
The protagonist isn’t a time traveler themself, but they can remember any and all changes to the timeline, and other people are constantly getting stuck in time loops.
The only two people who remember the original timeline hate each others’ guts
There is no single thing about myself that is unique. Taken elementally, each aspect of myself is something that has been repeated in a thousand hearts, over a thousand years, again and again and again.
I am the sum of my parts. No other person in this world has the exact combination of traits and thoughts and ways about them. My uniqueness is my wholeness. These atoms have never been arranged quite like this before.