Unless an abundance of internal storage is a priority for you, 64GB should be enough. A perfect phone for the kids, or to be used as an extra phone.
From Quzo
GOOGLE PIXEL 3A CLEARLY WHITE
OnBuy
(Black) Google Pixel 3A Single Sim | 64GB | 4GB RAM
Gadcet
Google Pixel 3a 64GB Just Black - Unlocked, New