Let's define Alpha WR for a minute.
Ok, so just to be a bonafide #1 in the NFL you pretty much need 75 receptions, 1000 yards, and 6 TDs. That means you'd finish in the top 32 in each of the major statistical categories for a WR.
One way to quickly narrow that list is to see who's done it in consecutive seasons. If I pick 3 consecutive seasons as my Alpha benchmark, adjust for injury, then I should get a nice list.
Then here is your Alpha List:
A.J. Brown
CeeDee Lamb
Cooper Kupp
Davante Adams
Ja'Marr Chase
Justin Jefferson
Keenan Allen
Mike Evans
Stefon Diggs
Tyreek Hill
Chance to get 3 in a row in 2024 and become Alpha's by this definition
Amon-Ra St. Brown
Brandon Aiyuk
DeVonta Smith
You know who doesn't profile like any of these guys?
