Give a top 2 for each slam.
AO: Tsitsipas, Nadal/Medvedev (cop-out I know)
FO: Thiem, Nadal
WB: Zverev, Aliassime
USO: Thiem, Sinner
I can't wait for Thiem and Tsitsipas to rule. The short time before Sinner takes over :devil smile of old MTF.
Of course I equally wouldn't mind a Nadal YCGS.