Looking back at the opening post, and looking at the primary uses, I figure that any reasonable-quality 3x9 or 2x7 would work just fine.
Self-defense at very close range with a scoped rifle is really a low-probability need which is more easily met via shotgun or handgun. Me, I wouldn't even worry about it. Just my own opinion, of course, but at five or ten yards I figure I could hit a large target by shooting from the hip. When I messed around with that in casual manner, hits were easy come by.
I'd set up for hunting probabilities, myself.
