#4 Eddie Dennis
While many people in WWE right now are fantastic with promos, Eddie Dennis is just as good, if not better. If he gets the chance to rise through NXT UK, he could be one of the brand's biggest stars long-term.
The 'Pride of Wales' is currently out injured, but when he returns, Dennis should slot right back in, and targeting a big name like Cesaro would immediately make him a big time star in NXT UK.
Before the injury, Dennis was being built up quite heavily by NXT UK, including a big time singles contest with Dave Mastiff at TakeOver: Blackpool, and while he'll be out for some time yet, Cesaro is the perfect opponent on return. Dennis has a great look, size, can talk and is a talent in between the ropes, and whether he goes on to the main roster or not, he'll make quite a lot of money for WWE as a top heel in the coming years.
#3 Kassius Ohno
Going back to his days on the independents, Cesaro has made many friendships and partnerships, but none were as good inside the ropes as the one with Kassius Ohno, then known as Chris Hero. Together, they were the Kings of Wrestling. The duo tore it up all over the United States, but signing with WWE fractured that partnership, and while the two pairing up again in NXT UK makes sense, they should have a big time matchup first.
Given Ohno's status within WWE (it's highly unlikely that he'll ever move up to the main roster alone), this is the only time they'll have the chance to have a match, and it would be amazing. If they were again to pair up, we may see the Kings of Wrestling run rampant over any brand in WWE, but before they get to that, for the fans and for themselves, we'd love to see these two go at it for 15-minutes on more time.