SharePoint Online Duplicate Checker

Hi everyone, I am working on a project where we are finding a manually finding a significant number of duplicate records in SharePoint. That said there is almost 7TB of data and doing this manually is not really realistic. Is there a more effective method or Microsoft recommended Deduplication tool out there that can simplify this process?

I know PowerShell is an option but looking for something more user friendly for non-technical users as they will be the ones that need to verify and approve the deletion of the records during the dedup process.

Appreciate any guidance you can provide.