Visit the original Cherry Republic, right is downtown Glen Arbor. They are are a brewery and restaurant too, so make sure to grab one of their famous cherry chicken salad sandwiches and a cherry beer while you are there. If you're not into beer, they also offer wine tastings and wine by the glass!
There are so many wineries on the Old Mission Peninsula, there is no way I could list them all. If you are feeling extra adventurous, you can take yourself on a wine tour down the entire peninsula. The website I listed here is really helpful to find a winery you would like to visit. I do suggest either calling the winery or visiting their website before going though, because I am not sure if they are closed for the winter season.