#3 Tag with Roman Reigns
Shane McMahon and his crew have made it clear that they won't fight fair, which is exactly why Roman Reigns and Kevin Owens need to team up. This will also create an interesting dynamic between Roman Reigns and Kevin, which could result in one of them finally turning on each other.
This will also give WWE a chance to even the numbers between McMahon's regime and the babyfaces, which could result in others joining in later. At least this way, WWE can keep the central feud going and also have different layers to build upon further. It could even be what returns Smackdown Live to ratings glory.
In the end, WWE needs to put Reigns and Owens together for a while. Not only will it help both stars grow characterwise, but it also could leave the door open to some pretty interesting options later.