#2 Lars Sullivan
Kane faced Braun Strowman and Brock Lesnar in a Universal Championship match at the Royal Rumble, and WWE will likely want to match him up with similarly monstrous opponents if he makes a return.
While the aforementioned Killian Dain and Samoa Joe would certainly be tough opponents for the 7-footer, the next big monster on the main-roster radar will surely be Lars Sullivan – the NXT Superstar who will challenge Aleister Black for the NXT Championship at TakeOver: Chicago.
Much like Strowman, “The Leviathan” began by destroying smaller opponents in brutal fashion and he has gradually worked his way into the main-event scene, so it would be a natural fit for him to go one-on-one with Kane – one of the greatest big men of the last two decades – when he joins the main roster.