WizTree - it analyzes disk space, which you can sort files and folders by size etc.
When trying to get rid of some Lenovo Backups (RRBackups) that Windows could not find, even with the "Show hidden files and folders" option ticked, it did not display these files. Helped us at my company to clone some of the HDDs to SSDs without overspending!
https://antibody-software.com/web/software/software/wiztree-finds-the-files-and-folders-using-the-most-disk-space-on-your-hard-drive/