I can see Giuliani, and I can see it sailing--former federal prosecutor being bonafides that are hard for his base and Republicans to ignore. Thankfully, he's getting up there in years so, even if confirmed, won't last long, and maybe he'd pass on it because he'd rather not have that amount of work the older he gets.
Hannity is a joke, and almost welcome the nomination because it exposes the President's incompetence further. I think (or hope?) that even McConnell would balk at such a nomination.