Some call them Bloody Red Beers, or Spicy Red Beers, but the refreshment is the same. Most any beer works well - Pilsner, Porter, Lagers. Beer's 'texture' lends itself really well to the richness of Bloody Mary mix and the cold refreshing combination of carbonation and spice party well together.
Some people like as much as a 50/50 mix, others like their beer with only a splash of mix. Still others like only tomato juice with no spice at all. Some like a little salt on the rim a la "Michelada style", or even a full-blown Michelada. I like mine 3:1 beer to mix.
Let me know if you have a favorite garnish or recipe, I'm always looking for an excuse to taste something new.