variety of vegetables
The "best" variety is hard to recommend since it depends on what you are planning on doing with it (fresh eating vs. canning). Flavor may depend on the consumer - what I like you may not like. There are many other things that come into play when talking about the "best"
We have not done any yield trials specifically for Montmorency county but any variety should do well as long as it can fit into your growing season. Montmorency County has one of the shortest growing seasons in Michigan, usually about 90 to 100 days between last and first frost so without protective help it will be hard to grow long maturing, warm season crops. Putting out transplants helps since you will gain 3 to 6 weeks, but don't plant something that needs 90+ days to maturity (plant only 75 day corn and then don't plant much beyond June 1 unless you plant a 65 day corn). Technologies to raise soil and air temperatures around the plant will also speed maturity.
Many cool season vegetables (onions, peas, cabbage, lettuce, spinach, etc.) can be planted in April and continued through the summer as long as they are harvested before it gets too cold in October.