I trapped Fisher, martin and bobcat some 20 years ago for a few seasons. The ranges of all 3 overlap here in Northern MN and the sets are similar. Your Youtube videos are probably quite helpful at identifying the specific sets.
#220 connibears were legal in MN for land sets, and were my go-to trap in deference to the presence of Bobcat. I used a mix of pole, fixed cubby, and natural cubby sets, depending on location. My preferred set was a naturally occurring hollow log or good snow filled crevice in the rocks or under a brush pile that a snowshoe hare had already burrowed into/out of. Second was a pole set made on-site, third was the manufactured cubby or box sets, as a very limited number could be carried and set. I used these mostly for roadside sets.
They are highly curious, territorial, and scent oriented. They don't seem especially spooked by human scent. A good purpose made gland lure is essential. I usually gave them a trifecta. A gland lure from Minnesota trapline products, "just mice" lure or live mouse or muskrat bits to get them into the set, and a visual attractant such as a tuft of feathers or fur on a small fishing line above the set where it can twitch in the wind. My tags never went long un-filled.