TomaTito on 18 December 2019
I'll add the past six months sometime in the future in this post. Lots of months to shift through.
EDIT: UPDATED OP
Top sellers for each month
June: Cadence of Hyrule
July: Super Mario Maker 2
August: Minecraft
September: Zelda: Link’s Awakening
October: Untitled Goose Game
November: Pokémon