Crawdads for walleyes work too but you need to break the claws off the crawdads. Lol, never fished with them to much as didn't like getting pinched or breaking the claws off. Someone even sells crawdad scent for walleyes, or did in the past.
Huge frogs have also worked well for northerns but not so much in the fall like walleyes but more of an unfrozen water thing for northerns. Nothing better than big smelt for big northerns tho.