Handling Classification Across Cloud Environments

This has been a pain point for us for a while. We’ve got sensitive data scattered across multiple cloud environments and tracking it manually is next to impossible (we're also not happy with our current solution). I know there are different ways to handle it, but how are you guys managing classification in decentralized environments without drowning in manual work? And which tools/solutions did you find work best?

Would love to hear what’s actually working for you.