Marten are good right now. Lots of $100 marten at the last auctions. Easy to catch and prep, too.
Fisher are a little harder for less money. They used to be worth big bucks.I have a bud that, way back when, trapped for a couple of years. Zero knowledge and very poor fur prep. He caught a fisher amongst other things. It sold for well over $300 at auction. He had hidden the check because he didn't want his live-in girlfriend to see it. Well, she found it and demanded that they buy a dishwasher. He ditched that woman a few years later but he still has that dishwasher! It is around 30 years old now and working well. The ex died a few years back.