Pokemon GO to the Mainline Games
Two doors out of GO, and the Meltan secret.
Pokemon GO is a one-way feeder into the console world, and it has two separate doors.
Door 1 - GO Park into Let's Go
If you have Let's Go, Pikachu! or Eevee!, you can send Kanto Pokemon from GO into the GO Park complex in Fuchsia City. Only the original Kanto species (and their Alolan forms) qualify, and the move is permanent. The bonus: every time you send a Pokemon over, GO gives you a Mystery Box, which spawns the Mythical Meltan.
Door 2 - GO Transporter into HOME
Link your GO account to Pokemon HOME and you can ship a much wider range of Pokemon up using GO Transporter Energy. The energy recharges over time or can be topped up with coins. Once in HOME, those Pokemon can flow into any compatible Switch game.
The catch
Both doors are strictly one-way. A Pokemon that leaves GO can never come back. Plan accordingly - especially with rare or shiny GO catches.
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