I believe Indiana is the place you'd want to go to then. I don't think Michigan stocks summer run fish.
When i was younger i caught a few casting the breakwalls at Michigan City. I'm sure you could troll to get them as well. For flyfishing, there's the St Joe and some smaller tribs. The bad part is the fight in the warm water usually kills them
Not to get off topic ~ but i've been keeping my eye out for a good report on catching steel offshore in Ohio's part of Lake Erie. I've got a few here and there, but nothing like some of the reports i read last year. I know there is a thread on the Erie page about that, as well as on WC. If i can get that dialed in ~ i'll PM ya CW