Stipe Miocic
How can you not love Stipe Miocic? The hero of Cleveland is one of the most charismatic guys in the UFC right now and there's a reason why he's the Heavyweight Champion of the world - because's a tough dude. His resume speaks for itself and Raw could use an amusing big guy babyface at the helm, mainly due to the fact that in storyline Stephanie would hate it.
Miocic could more than handle himself in the ring but we like the idea of keeping his role as just the general manager for now, and then he could perhaps have a match or two down the line if a certain storyline required it. Miocic is just bundles of fun and his personality is infectious, which is something the WWE Universe desperately needs right now.