For good magazine articles and good photographs I would recommend these wrecks:
S.S. Wisconsin - Very popular wreck, 215 ft long steel steam freighter sank in 1929. Good large scale pictures and pictures of autos in the hold.
Lady Elgin - Side wheeled steamer sank in 1860. Greatest loss of life of any wreck on the Great Lakes. Huge politcal / historical consequences. Broken up but pictures of the anchors, windlass, paddle wheel and ribs will display well.
Seabird - Side wheel steamer burned in 1868. Third greatest loss of life for shipwrecks on the Great Lakes. This wreck is in 25 ft very close to shore. On a good day photos of the wheel with divers swimming through it can be truly spectacular. Because it is close to shore there is a lot of silt and if the weather has not been calm for a few days the visability may not be very good.
St. Mary - 120 foot schooner sank in 105 feet of water in a storm the same day in 1860 as Lady Elgin went down. Good pictures can be had of the anchor, windless and deas eyes.
Wels Burt - Schooner. Popular Chicago area wreck. It is mostly intact. Many elements, such as dead eyes have been chained or cabled in place to prevent theft but may photograph well.
The Straits of Mackinac - Coal fired steam ferry sank as an artificial reef. This is a very popular Chicago area wreck. It offers good large scale photo opportunities and some good pictures inside in both the mechanical areas and passenger spaces.