Read "How To Survive In A Science Fiction Universe" by Charles Yu, a novel about a time-machine repair-man getting stuck in a loop during his search for his father.
First person narrated, in a fictional universe in which you can travel in time but you can't change anything about the past.
It was fun and an easy read, lots of interludes about the physics of fictional universes and explanations of acausal items causing their own existence, including the book itself that you read in your hands.
Its nice if you'd like something with experimental narrative form twisting the usual story format.
