A family of Microsoft word processing software products for creating web, email, and print documents.
In my opinion, the simplest method would be to use Mapped Content Controls.
If less than about 11, you could repurpose and use the ones built into Word.
If more than that, you could create and map your own Content Controls.
Mapped Content Controls are not the only method, just the latest and IMO the most effective.
For all methods available in Word for automatic replication of data, see: