#3 CCK
CCK has taken many forms over the years, but at its best, it's a combination of Chris Brookes and Kid Lykos, who combine their creativity and athleticism into one of the most unique tag teams of this current generation.
They've faced The Young Bucks in the UK, so they'd certainly be aware of just how talented this duo is, and if they were put in with the world's best on the biggest stage, the Calamari Catch Kings would certainly become household names.
These guys are a little too out there and creative to be held down by the WWE, so a company that's looking to push the boundaries and give people freedom like AEW makes it seem like the perfect fit. They can't make a hundred signings right off the bat, because that would bloat their roster much the way WWE's is right now, but one day once Lykos gets healthy, this would be a fantastic signing.