The Amish Nanny

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.
A Family In Need 

A reclusive Amish logger, Ethan Gingerich is more comfortable around his draft horses than the orphaned niece and nephews he's taken in. Yet he's determined to provide the children with a good, loving home. The little ones, including a defiant eight-year-old, need a proper nanny. But when Ethan hires shy Amishwoman Clara Barkman, he never expects her temporary position to have such a lasting hold on all of them. Now this man of few words must convince Clara she's found her forever home and family.  

Brides of Amish Country: Finding true love in the land of the Plain People.