MotoGP 2021

Monster Energy Yamaha
 Maverick Viñales Yamaha M1 2022
Fabio Quartararo Yamaha M1 2022

Repsol Honda
Marc Márquez Honda RC213V 2024
Pol Espargaro Honda RC213V 2022

Suzuki Ecstar
Alex Rins Suzuki GSX-RR 2022
Joan Mir Suzuki GSX-RR 2022

Ducati Factory
Jack Miller Desmosedici GP21 2021 (option for 2022)
Pecco Bagnaia Desmosedici GP21 2022

Aprilia Racing Team Gresini
Aleix Espargaro Aprilia RS-GP 2022
Bradley Smith or Lorenzo Savadori

Red Bull KTM Factory Racing
Brad Binder KTM RC16 2021
Miguel Oliveira KTM RC16 2021

Red Bull KTM Tech3
Danilo Petrucci KTM RC16 2021
Iker Lecuona KTM RC16 2021

Petronas Yamaha SRT
Franco Morbidelli Yamaha M1 2022
Valentino Rossi Yamaha M1 2021

Pramac Ducati
Jorge Martin Desmosedici GP21 2022
Johann Zarco Desmosedici GP21 2021 (option for 2022)

LCR Honda
Alex Márquez Honda RC213V 2022
Takaaki Nakagami Honda RC213V 2022

Avintia Ducati
Luca Marini Ducati GP19 2021
Enea Bastianini Ducati GP19 2021

Mostly sensible signings except for Pol Espargaro going to Honda.
He is (IMHO) too excitable and had his clock cleaned by Marquez whenever they raced in the junior classes!
Then again, he might be capable of pushing Marc if he gets the chance.