Presumably he'll still be WWE Champion so I don't really care who he's facing as long as he drops the championship. Drew McIntyre seems like the best option to me, at least when also trying to account for match quality since I feel McIntyre's physique lends itself more naturally to not just getting squashed, and then pulling out a win at the end, like I feel would happen with Kevin Owens. But I'd honestly settle for No Way Jose if the end result is WWE finally moving on from Brock and the main championship because that story was stale like two Mania's ago, yet they've been stagnant there forever. Although, and this won't happen, but if I could have my way, someone like Keith Lee fighting and dethroning Lesnar would be really cool.