My dad grew up in Fenimore and fished the river a lot. By the time I came along he had discovered walleyes on the Miss.
I got him to take me over quite a bit when I was a kid. Cats are good in deeper spots along the bank. Smallmouths same deal. Both around trees laying in the water.
Pretty much need to use the boat to get around to multiple spots. There's pretty good fishing once you figure it out. But that takes some time.
I taught Galen Bremmer from Avoca the walleye thing on the Miss. If you wanted to try a guide he might be worth talking to. It is a stunning piece of river down there. Good luck.