What a wonderful question. Thank you for asking. Sanger Rainsford is the only character in “The Most Dangerous Game” by Richard Connell who undergoes any kind of a change, so I have found four key moments which might inspire a title for a character analysis essay about him.
The first possibility comes from a line Rainsford speaks early in the story, never dreaming his circumstances would change so dramatically. He says,
The world is made up of two classes--the hunters and the huntees. Luckily, you and I are hunters.
This line might inspire many titles, but the strongest one for me is “Luckily, He is a Hunter.” (I know that is not the correct usage of “luckily,” but is certainly parallels this important line in the story.
The second quote has to do with the reason General Zaroff gets the idea to hunt Rainsford. When Rainsford shows up at the general’s mansion, he introduces himself by name. After he says it twice, Zaroff finally answers:
"I've read your book about hunting snow leopards in Tibet, you see," explained the man. "I am General Zaroff."
If Rainsford had not introduced himself by name, he might, just might, have gotten by as a guest rather than becoming prey. The title that comes to mind is “Hunting Snow Leopards in Tibet.” Of course it is a bit random, but true lovers of this story will get the reference.
The third choice for title is the actual quote Rainsford says when he realizes that Zaroff could have killed him after the first day of hunting but does not, savoring the joy of a challenging hunt. Rainsford says, "I will not lose my nerve. I will not." Again a bit random, but apt.
Finally, the last line of the story is a perfect place to find another title idea. Rainsford has left and come back, surprising the general in his bedroom. As per their bet, the two men will fight to the death.
The general made one of his deepest bows. "I see," he said. "Splendid! One of us is to furnish a repast for the hounds. The other will sleep in this very excellent bed. On guard, Rainsford." . . .
He had never slept in a better bed, Rainsford decided.
Of course the title idea is “Never Slept Better.”
Choose something, one of these or one of your own, which most reflects the tone of your writing as well as the attributes you want to highlight in Rainsford. Happy writing!