There are many time-loop stories in speculative fiction. Hell, there's like a thousand episodes of sci fi TV with this premise.

But if you're looking for a good one, try Hyperion (and Fall of Hyperion). The first book can standalone, but the second book gives you a more satisfying answer to your question. It is told in a Canterbury Tales style, with multiple converging retrospectives. But the principle antagonist is time itself. Very fun read.