I'd shoot for redstone/eagle area, but in january the ice can still be sketchy on some of those bigger lakes. Lots and lots of smaller lakes in that area, and if you have machines to get around, you could fish a handful of lakes each day if you wanted for specks/splake. Maple would be my choice for walleye.
Haliburton/percy lake can also be great for trout, and decent whities as well.
S.