2. Andrade Almas
Andrade "Cien" Almas has delivered in every match he's had on Smackdown since his promotion from NXT. While he's yet to win a title yet or make a huge mark, he seems primed for the main-event.
WWE desperately wants a new Latino star around which they can market, and although his English needs work, Almas could be that star.
He can clearly be counted on for more than just 'guy who loses to AJ Styles and Daniel Bryan' and he needs to be able to string together wins so that he doesn't lose interest in his WWE run.
Almas is a guy that hardcore fans will cheer for no matter his allegiance, but a huge surprise win in the Royal Rumble would help propel him to stardom.
It did take him some time to find his footing in NXT, so perhaps he still needs to adjust to the main roster of WWE. It doesn't appear as much, but you never know.