Open Source MLOps Solutions - What's the Difference?

How many other open source MLOps solutions are there and how does your community stack up with other communities? And are those communities clustered around different kinds of models? Maybe computer vision or natural language processing. Or are they regional? Is there like a big community in Europe, the Middle East, maybe another community in Asia? If you're an ML Ops engineer, how do you discover ClearML? How do you decide to join ClearML as opposed to some other?