#1 David Starr
Wrestling is about diversity, and when it comes to diversity of styles, there's few better than David Starr, who can wrestle hardcore, technical, strong style and even fly around with the best of them, and he's become arguably the best unsigned talent in the entire business.
Starr has plenty of nicknames, and we aren't going to list them here, but The Product has become a star all over the UK and in the United States, and if AEW want someone they can slide up and down their show against any opponent, than Starr is that man.
His bouts with Ilja Dragunov, Walter and Zack Sabre Jr. in the UK have been absolutely incredible, and whether he's playing a smiling baby face or a despicable heel, Starr can do it all. Like a few people on this list, Starr isn't the biggest name, but if AEW book him properly, he could be a major star on the worldwide stage.