#3 Kane

We haven’t seen Kane and Lesnar lock up in these past few years. When Braun Strowman is done beating Kane, there’s a good chance The Big Red Machine just fades away again for a while, eating his loss now that the job is done in putting over Strowman.
In a world where Lesnar is looking for an opponent, I wouldn’t mind an alternate route where Kane seeks redemption for his loss to Strowman by trying to take out another behemoth.
How Brock Lesnar ruined another wrestler's career - Watch Now!
Basically, if Strowman wins the battle of Monster vs. Monster, then Kane decides to set himself up for Monster vs. Beast and a Universal Championship victory to offset his bad luck.
These are two future Hall of Famers—two huge guys who have held world titles and been around for so, so many years. I would love to see them do battle for a one-off match.
A top WWE star is missing in action