Which "Untouched" Gen 8 Pokémon are Still the Most Useful?

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It's almost inevitable for a Generation of Pokémon to be given alterations of some kind, with new evolutions, or regional forms, or even whichever battle gimmick gets cooked up for the next games! But even then there are always Pokémon that don't see any attention and remain the same as they ever were, so when looking to the Galar region, which Pokémon without touch-ups would be considered good enough to hang in with the improved ones?