There's a few good documentaries that really highlight the horrific beast that the animal agriculture industry is. Dominion showcases how cruelly treated animals are. Gamechangers talks a lot about the environmental aspects of animal ag if that's your thing. I've heard Cowspiracy is good but I haven't watched it bc I'm already woke lol. There's a new one called Pignorant that's by a vegan activist I follow that I really like, too.