Here's five I like (not counting brewpub beers):
1.) Local(ish): "Creemore Springs Premium Lager"
Brewers:
Creemore Springs Brewery, Creemore Springs, Ontario, Canada
BrewAdvocate.com review:
Creemore Springs Premium Lager
You can find it in many place in the greater Toronto area. Best on tap, but also very good in bottles (two formats: 341ml bottles and 500ml twist-cap bottles).
2.) Regional: "Northumberland Ale"
Brewers:
Church-Key Brewing Company, Campbellford, Ontario, Canada.
Only around twelve places in the greater Toronto area server this (on tap). Bottles are only sold at the brewery itself in Campbellford (think, small brewery).
3.) Quebec: "Belle Gueule Originale" (lager)
Brewers:
Brasseur RJ, Montreal, Quebec, Canada.
BeerAdvocate.com review:
Belle Gueule Originale
Easy to find in bottles in Toronto as most Beer Stores carry the brand. Good in bottles, but great on tap.
4.) California: "Anchor Steam Beer"
Brewers:
Anchor Brerwing Company, San Francisco, California, USA.
BeerAdvocate.com review:
Anchor Steam Beer
Fairly easy to find in Toronto in some LCBOs (Liquor Store). Had it once on tap in a San Francisco grill house and it was superb.
5.) Czech Republic: "Starobrno" (pilsner)
Brewers:
Pivovar Starbrno, A.S., Brno, Czech Republic, EU.
BeerAdvocate.com review:
Starobrno
I don't care for most Pilsners, but this one it great. I can't image how good it is on tap as I've only had it in bottles. Available in a few LCBOs in the greater Toronto area.
Cheers,
- DFisherman