The early Gritty videos on youtube had some great suggestions and footage of spot and stalk bear hunting. Unfortunately it has become more of a shopping network show now, I get it as they need to make money, but I learned a lot from their content from several years ago. I had no interest in bear hunting until watching their wild back country hunts. Took my first bear 2 years ago during Spring, I have a spot and stalk fall hunt set for this year in rough country. Hoping for the best, but I know it will be a tough hunt.
Fall is a little tougher than Spring because the food sources are more spread out, but you are still looking for food sources, water and shelter and the proximity of each of those needs. Try to find all 3 in close proximity then start looking for sign. I have bumped a lot of bears on closed logging roads hiking into elk hunt, if you have access to closed roads you could slow down and move a quietly as possible with the wind in your favor. Good Luck!