For Great Lakes walleye fishing in Michigan, it's mostly Bays and tributaries of Lakes Michigan, Huron, and Erie. Lake Superior also offers limited walleye fishing ...more in some of it's bays, but it is too deep and cold for walleyes in most places.
It's really not that easy. It took me years of getting skunked to figure out how to catch them with any consistency at all. And I still get skunked a lot. They ...more are a very difficult species to predict. The state of Michigan, both the Upper Peninsula (UP) and Lower Peninsula (LP), has great walleye fisheries. In the LP you have Lake Erie, St. Clair, the Detroit River, and Saginaw Bay just to name a few. In the UP there's Little Bay de Noc, Big Bay de Noc, the St. Mary's River, Portage Lake, Lake Gogebic, Indian Lake, etc. Typically the best walleye fishing, at least for big fish, is on the Great Lakes waters.