https://www.polygon.com/2018/11/16/18098997/pokemon-lets-go-charmander-squirtle-bulbasaur

Pokémon: Let’s Go! limits your partner pick to one of two Pokémon: Eevee or Pikachu, depending on which version of the Switch game you get. What with these being Pokémon Red/Blue makeovers, though, this may be disappointing. Maybe you just want to pal around with your starter Bulbasaur, Charmander or Squirtle from the start.

Thankfully, you can truly have it all in Let’s Go!, and with ease. All three of the original starters can be yours relatively early on into your adventure — and there’s even a chance to own more than one of these rare Pokémon.