what is the rarest shiny in pokemon go

The rarest shiny Pokémon in Pokémon GO are highly sought after by players. Some of the rarest shinies in Pokémon GO include:

1. Shiny Alolan Grimer
2. Shiny Nidorina/Nidoqueen
3. Shiny Alolan Vulpix
4. Shiny Alolan Marowak
5. Shiny Party Hat Nidorino
6. Shiny Abra
7. Shiny Spooky Festival Gourgeist
8. Shiny Binacle
9. Shiny Fomantis
10. Shiny Joltik

These shinies are considered rare due to their limited availability, elusiveness, and the specific events or circumstances required to encounter them. For example, some shinies were only available during specific Pokémon GO events, had accidental releases, or were extremely rare due to low spawn rates.