These tutorials show you how to use RLlib to train agents in PettingZoo environments.
PPO for Pistonball: Train a PPO model in a parallel environment
DQN for Simple Poker Train a DQN model in an AEC environment
RLlib is an industry-grade open-source reinforcement learning library. It is a part of Ray, a popular library for distributed ML and scaling python applications.
See the documentation for more information.