Another intriguing option, at least according to me, could be Kevin White, previously with the Bears. White has been a major bust since being drafted 7th overall in 2015, but that is primarily because of injuries and getting back from them, and I mean, bringing him to camp can’t hurt. He certainly has the potential, and he won’t cost much.
White was a great draft prospect after coming out from West Virgina where his head coach was Dana Holgersen. Kliff Kingsbury is a direct protégé of Holgersen, and their offensive systems are alike. In fact, Holgersen and Kingsbury used to share an apartment. It really is mentor and pupil, so maybe Holgersen has told Kingsbury about Kevin White.