Rio Bravo
She wore a yellow ribbon
Young guns
Wouldn't you rather have a nice cup of tea?
Sergio Leone's trilogy with Clint Eastwood - All three are classics.
Interestingly, Fistful of Dollars and Magnificent 7 were both remakes of classic Japanese Samurai films by Akira Kurosawa. If you don't mind swords instead of guns, the original movies hold up pretty strongly in this genre.
Don't believe everything that you read.
Any John Ford directing John Wayne movie. Most Clint Eastwood westerns.
Blazing Saddles, end of list. lol
Hombre
Shane
Magnificent 7
Winchester '73
Butch Cassidy and the Sundance Kid
The Good, the Bad, and the Ugly
Stagecoach
Tombstone
Lonesome Dove
Unforgiven
High Noon
The Searchers
Stagecoach
Dances With Wolves
The Man Who Shot Liberty Valence
Once Upon a Time in the West
Blazing Saddles
The Good the Bad and the Ugly
Little Big Man
Shane
I'd have to say....The Outlaw Josie Wales. Or the book by Forrest Carter... Gone to Texas