#3 Zack Sabre Jr.
Zack Sabre Jr. is one of the best in-ring technicians today, if not the best. He is "over" with the fans and knows how to connect with them properly. He uses a number of submission moves to dominate his opponent and has the ability to deliver a great performance in highly anticipated matches.
Sabre Jr. has competed in a WWE ring before, as he was a participant in WWE's inaugural Cruiserweight Classic Tournament. He was also offered a contract, but he declined it.
Since then, he has improved a lot as an overall performer. He is a complete package and is just what the WWE needs. Sabre Jr. coming to WWE would give us dream matches for him against opponents like AJ Styles and Daniel Bryan.
Signing Zack Sabre Jr. would be a good choice for the WWE, and a run in NXT would be quite beneficial for making him a perfect fit for WWE.