Let's play a game. This is a hockey league that I'm going to create, and it's honestly mostly for the purposes of this game, but it's a 40 team hockey league, and I'm just going to post the cities, and you can just comment a name for whatever one you want, so here goes.
EAST
Toronto
Montreal
Quebec
Halifax
Boston
Providence 
New York
Brooklyn
New Jersey
Philadelphia
Pittsburgh
Cleveland
Cincinnati
Baltimore
Washington DC
Hamilton
Buffalo
Portland (Preferably called Maine. You'll find out why later, though I'm guessing you already know)
Detroit
Ottawa

WEST
Chicago
St. Louis
Minneapolis
Milwaukee
Winnipeg
Nashville
Oklahoma City
Saskatoon
Seattle
Portland
San Francisco
Denver
Salt Lake City
Dallas
Houston
Calgary
Edmonton
Vancouver
Las Vegas
Kansas City

(In case you didn't notice, I'm not a fan of hockey in the Southeast, but I'm a little more forgiving of at least the inland Southwest, influenced by Nashville's and then Vegas' Cup runs, and I've kind of fallen in love with Oklahoma as a hockey market, sort of combining the prairie-ness of Winnipeg with the Southern-ness of Nashville, and I know in real life Houston is looking for one)