#2 Wembley Stadium
We know that we keep badgering on about it, but there's a good reason for that. Wembley Stadium is the frontrunner for any and all WWE stadium shows that take place outside of North America, mainly because of the overwhelming popularity of the UK wrestling scene in addition to the fact that it already hosted SummerSlam way back in 1992.
However, that was the old Wembley. The new Wembley is arguably even more impressive, which opens the door for plenty of international visitors in addition to the many, many Brits who would pay good money to see the show live.
While there aren't too many high-level British names in WWE right now after the departures of Wade Barrett and Neville, you've always got the likes of Tyler Bate and Pete Dunne who could lead the charge.