If you decide to grow the wild Maine/ Nova Scotia bloobs, then I would highly recommend you start with Brunswick, available from Raintree. I’ve trialed a bunch, and it’s the best one for vigor, flavor, and productivity.
If I had to pick another, then I would go with the clumps of wild bushes sold by Fedco. They sell a good product— the roots are always substantial. These wild clumps are truly LOW lowbushes, so some weeding comes into play.
The other variety sold by Raintree, Burgundy, has been a productionless runt for me going on 3 years straight.
Brunswick took a while to get its act together, but is coming into its own now.