Sega.
I'm just looking at my Switch third party titles and I have both Puyo Puyo Tetris and Valkyria Chronicles 4, both of which are awesome games. I will likely get Sonic Mania at some point too. Sega may not be first party anymore but they still have some of that original first party mojo left in them.
(For all the people looking for "developers" instead of pushlishers, then consider my answer "Sonic Team".)
curl-6 bet me that PS5 + X|S sales would reach 56m before year end 2023 and he was right.
My Bet With curl-6
My Threads:
Master Thread, Game of the Year/Decade
Switch Will Be #1 All Time
Zelda Will Outsell Mario (Achieved)
How Much Will MH Rise sell?
My Bet With Metallox