Large Database Migration to sharepoint online

Hello Team,

Meri Christmas in advance.

We have one database which is of 960GB size and contains approx around 7000 files in it. What is the best possible way to migrate this database to SharePoint online.

Please provide us some suggestion to configure the MNSP v.15 tool for this particular database so that we can transfer the files.

We have tried with indexing and compacting other database(80GB) but it took good 35-40 days to complete the migration.

Please let me know in case of further details.

Your early response is much appreciated.

Thank you in advance.