The top low alcohol beers at RateBeer.com are here:
Top 25 Low Alcohol Beers
Some of them actually rate pretty high, but it looks like most of the Top 25 is going to be tough to find as they appear to be mostly Swedish. But you might be able to find something in there, or use the site to find the best of what's available in your area.
I think the site also has a feature for finding where any beer is sold, so that might help as well.