#2 Pete Dunne
It is about time that the Bruiserweight makes an appearance on the main roster, and Chase Field can be the best arena for him to make his presence.
The current United Kingdom Champion, Pete Dunne is the longest reigning champion of the modern era. He has been UK Champion since May 20, 2017, and it looks like he will be holding on to the title even longer.
Like Ricochet, the WWE Universe may never expect a champion to be a surprise entrant in the annual Royal Rumble match. Also, he is a better option than the likes of Tommaso Ciampa, and Aleister Black who need to be protected a lot because of their gimmicks.
With age on his side, HHH can have him spend more time in the yellow brand, and have him only make sporadic appearances on the main roster.