This is pretty specific but does anyone have recommendations for caveman fiction?

I’m looking for fiction stories set in caveman times. Not post-apocalyptic stories or nomads away from civilization stories mind you, but stories where there is no civilization yet. I’ll take “historical fiction” (if that applies here) or more fantastical settings as long as they have the right vibe.

I’ve always been somewhat fascinated by the Paleolithic. We spent most of our history living as hunter-gatherers, with modern civilization a small blip by comparison, but it doesn’t show up in storytelling that often.