Largest Ranches In Texas

Need some help selecting a state from my list!?
I’m looking for a rural state, where horseback riding and ranching is dominant. I like the look of states with large open landscapes where horses can graze for miles. Prefferably warm temperatures in the Summer and beautiful landscapes. Low population too.
I have narrowed down my search to:
Tennessee
Montana
South Dakota
Texas
Utah
Oklahoma
Wyoming
Kentucky
Colorado
Could you please suggest one (or another one you know would be good( that best fits the criterea above! Thanks.
I would go with Colorado. There was a place I went to by the Golden Gate Bridge I believe and it was way fun. It’s a great place.
La Escalera Ranch “Mule Deer Serenade”