4. Arizona Cardinals
Before John Brown signed with the Seahawks, this team would have been the perfect fit. With two of the top four players in terms of air yards per target, they could have aired it out with Allen. That being said, the league leader in that stat, J.J. Nelson, has arguably the most ridiculous route tree consisting of almost all deep routes is still there waiting to go deep. His routes will probably diversify this year with Brown gone.
While Nelson is busy tearing up the turf, Larry Fitzgerald can run every other route known to man. The former deep threat has evolved his game to now cover all the shorter routes, and will be a great safety blanket for any quarterback ready to step in with the Cardinals. Allen will know he can count on Fitz, who will be open and always provide an option.
Something to consider is David Johnson. While a great running game can help any rookie quarterback, ex. Dak Prescott with Ezekiel Elliott, it may mean running more play action. Play action can trip up even the best quarterbacks and their footwork. For Allen, consistent footwork is an issue, despite what he showed at his pro day. Being able to do this at a high level will be a requirement for Allen should he go to the desert.
In Arizona, Allen won’t have to start right away, helping his transition to play with Johnson, but maybe losing him the safety blanket of Fitzgerald. Sam Bradford, barring injury, should be able to start the year.
The Cardinals are hurt by their lack of receiver depth with an aging Fitzgerald, otherwise they would be higher on this list.