Migration of mailboxes from On-premise exchange organization to Office 365


I am planning to migrate mailboxes from on-premise exchange environment to Office 365 (Cloud). While going through the documents for Migration Manager for Exchange, I was lil bit confused as I'm not familiar with this product.

Not sure to follow which document. Can anyone suggest me to follow which document for Migrating on-premise exchange organization to Office 365.

All the below three VM are hosted in Azure:

1 AD VM (Windows Server 2016)

1 AD connect VM (Windows Server 2016)

1 Exchange Server (Windows Server 2016)