Mail Merge being deprecated in 365

I am trying to find a workaround for Mail Merge being deprecated in 365:

https://docs.microsoft.com/en-us/dynamics365/get-started/whats-new/customer-engagement/important-changes-coming#mail-merge-is-deprecated

The demo videos only cover running Document Templates for single records with no mention of being able to run a Word template on multiple records which is a common requirement. Does anyone know what I can use as an alternative to the lost functionality of Mail Merge? Thanks