#2 John Cena
While many people in The WWE Universe are hoping that John Cena versus The Undertaker actually takes place at WrestleMania 34, The Cenation leader teaming up with The Monster Among men would be an interesting consolation prize. Again, it's not the matchup everyone wants to see, but it would definitely come with some massive benefits.
In fact, having John Cena as Strowman's tag team partner is the perfect way to give Strowman the rub as the next big thing, give Strowman a WrestleMania moment to remember and also set him up for The Universal title picture when his and Cena's partnership comes to an end.