The first rule about Dinosaur Fight Club, tell everyone about Dinosaur Fight Club.
In what feels like a strange throwback to the '90s cartoon Dinosausers, a YouTube channel named ThunderHoss has been taking creatures from Horizon Zero Dawn and pitting them against each other in classic battles you never knew you wanted to see! Through a little bit of trickery, ThunderHoss has been overriding one dinosaur as an "enemy" and then facing off against another beast, to then film the battle off to the side while providing commentary. He's no Jim Ross, and honestly, I'd love to hear a sound byte of "Good Gawd almighty! They've killed him!" over some of these battles. But he does a nice job of picking fights where you kinda don't know who the winner will be in the end.
You can check out his full list of videos on his YouTube channel.