Just added another 3 million password hashes to my little side project: https://pwcheck.gwdg.de
Yes, that's basically a clone of the haveibeenpwned.com password hash database and API, but with additional sources (4x the size of HIBP).
3 million may sounds a lot, but there are 3.66 billion hashes in there already. So... let's just say there are a lot of leaked passwords out there.