Substantial populations of lake trout, rock bass, smallmouth bass, tullibee, and walleye. Northern pike are also present in small numbers, but good sizes. Tullibee are the primary forage, so lures that mimic them are good - mixes of silver, blue, and purple in spoons and plugs.
For bass, look for rock piles that come up a ways but not quite to the surface. Rumor has it there's a narrow but tall one somewhere that doesn't show up on the map that they really like, although I have no idea what part of the lake it is.
For walleye, try the saddles between islands or between and island and shore.
For lake trout, they'll be pretty darn deep with the crazy-warm water temps we have this year, although not quite at the bottom at deep points. (The DNR says oxygen levels sufficient for trout extend to 82 feet, whereas the maximum depth is 98 feet.) Try trolling with a 1 to 2 ounce sinker and a spoon on a few feet of line on a three-way swivel. Please consider releasing lake trout, as their population is fragile. Note also that lake trout season ends September 30th.