Best way to move 5TB from OneDrive to NAS

Basically what the title says.

I’ve got a user with ~5TB of data up in OneDrive for Business. We need to get the data into a NAS, which I then plan on replicating to another NAS.

What’s the most efficient way to get the data onto the NAS? I was looking at a few utility programs to handle it but I haven’t found one that works with OneDrive for Business.