Fields of Honor Alolan Sandshrew .

When the player helps the Diglett Trainer find at least 30 Alolan Diglett, the player can get an Alolan Sandshrew as a gift.

This marks the first time an Alolan Sandshrew can be obtained in Sword and Shield.
(This statement above excludes any kind of transfer via Pokémon HOME)

This gift cannot be shiny.