A bit stale now, but a good source I found for datasets relevant to EA-adjacent topics (particularly climate change and global health) is https://www.drivendata.org/. They have competitions similar to Kaggle, which I think makes it a pretty ideal source of datasets for people who are new to data science and machine learning. Somebody else posted in a different thread on this forum about DrivenData IIRC.

Thanks for your question, Harry! As it happens, I am also looking for a potentially EA-related dataset for a data science project, so I figured I'd bandwagon on.

Thank you for suggesting OWID as a source of datasets. I'll check that out. I'll also post back if I find anything responsive to your interests.

Follow-up question: Do you care about how large the data set is? Like are we talking 100's of KB, many GB, or some other order of magnitude?