It is my impression, from a rather limited selection of newspapers, that Target-type games are not available in U. S. newspapers. There used to be one that I played years ago called Word Game. It was after Word Game disappeared that I found Chihuahua, so it's been more than a decade. My hometown paper, the Washington Post, has a couple of word puzzles, but nothing like Target or Spelling Bee. I have tried the New York Times's Spelling Bee, but I found it rather clunky. I've never seen a word game like Spelling Bee or 7-by-Many anywhere else.
The 7-by-many is my favorite of the Chihuahua puzzles. I love its more free-form nature. Maybe that's what appeals to my fellow Americans.