To the O.P... . I have done western Ontario (the natives call it "Northern Ontario") gads of times as a DIY. It is an AWESOME area... .the approximate triangle between Thunder Bay and Pickle Lake and Dryden.
I have nothing in it other than I know John... ..but get a hold of these folks: rousseauslanding
Our group use to go to Kenda Lodge north of Sudbury but they are out of business . Try searching around the French river or if you go to the Outdoor show in Harrisburg there are a few outfitters there. Seems like most places are lodges. Or if you don`t mind canoeing and portaging Algonquian Provincial park is great.
Bush Country Camp in Tιmiscamingue, Quebec. My wife and I booked our first trip there on the recommendation of the HPA founder, John. Who took his boys there during the summer.
It’s a rustic outpost camp on an island at Lac Sasseginega. After leaving the paved road, you have a 2 hr ride on dirt gravel logging roads, then a half hour boat ride to the island. The lake is 19 miles long and shared by 2 Outfitters..
Our last trip was 3 years ago. There is a slot limit on Walleye,and strict possession limit. We’ve caught several 30” Walleye, 34”Lake Trout and a 48” Northern Pike. Typical day fishing was 20-30 Walleye each and plenty of 30-36” Northern Pike.
We would fish walleyes in the morning and evenings and Pike or Lake Trout in the middle of the day.