The Pokémon Centers will begin selling new plushies from the games Pocket Monsters Sword and Shield starting on January 18th, 2020. These items will also be available on the Amazon.co.jp Pokémon Store starting on January 25th, 2020 with pre-orders starting on January 18th, 2020.

Item List:

Galar Ziguzaguma Plushie - 2200 yen
Galar Massuguma Plushie - 2200 yen
Tachifusaguma Plushie - 2970 yen
Galar Matadogas - 2200 yen

Source: https://www.pokemon.co.jp/info/2020/01/200110_p01.html