In official contexts, the group is referred to descriptively in several ways, including "Galar first partner Pokémon"[2], "first partner Pokémon of the Galar region"[1], and more.
In The Indigo Disk DLC, the Galar first partners can be caught in the wild at the Terarium. They are unlocked after upgrading the biomes through the League Club Room.
The Galar first partner Pokémon are the only first partner trio where none of their members are owned by Ash in Pokémon the Series. Instead, all three are caught by Goh.