Are you want to perform tenant to tenant migration in Office 365 for free? If yes, this video for you. In this vide I deeply described all cross tenant migration steps. So watch the video and dome Microsoft 365 tenant to tenant migration.

If you did not get the accurate result in Migration you can select MailsDaddy tenant to tenant migration service. 

Know more: https://www.mailsdaddy.com/services/cross-tenant-migration.php