Since it has now a priority to find him the right storyline to debut, allow me to put my creative hat on and pitch an idea.
I'm proposing his first feud be w/ Kane (aka, my favorite superstar of all time). Here's the Ambrose promo where I got my inspiration from:
Getting back to Kane. Kane's gimmick has always been that he is a monster. Ambrose has too referred to himself as a monster. But one line in his promo caught my attention: "I'm not 6'8" and I'm not 300 pounds, but THAT...THAT IS WHAT MAKES ME A MONSTER!" Have Ambrose debut and call out Kane, saying he only thinks he's a monster b/c he is 7ft tall and 300 pounds. Ambrose would argue that he is a real monster b/c he doesn't need strengh and power to be a monster. All he needs is his mind.
A feud w/ well known star... Check
A feud that makes sense... Check
A feud w/ a man that is famous for putting other people over... Check
What do you guys think?