We've had some good blueberry discussions on this forum. Search for the word "blueberr" (to include both blueberry and blueberries), and see if you get what you need. My all time favorite is still one of the first Minnesota releases:
Northblue.

Maybe look at the link below. But in there list of recommened blueberries, stick with the MN releases, Elliot or Patriot. They will be the most cold hardy.

Here is a link that might be useful: Blueberries