Best Piano Sound for MuseScore?

Hello everyone,

I am in the process of publishing an online piano lessons course and love the play-back feature of MuseScore.

https://www.littlecomposers.com/academy.php

Seeing the notes change color as they play would help our students to follow along but, the included sound isn't ideal. This would be via a screen capture > YouTube video which the kids can watch if they need help.

How could I substitute the Piano for a more high-quality one?
Ideally, I'd love to use the piano from GarageBand but I suppose that isn't possible.

Thank you for any pointers and advice,

E R