Advice for choosing studded tires?

I'm commuting by bike for the first time and we finally have some solid snow and ice. My ride home Friday was pretty hairy on my bike's stock tires. I don't want that to stop me from biking, so I'm looking into studded tires that will fit it. While I can change a tire, I've never gone any further than buying exactly what was on there before, so I don't know how to evaluate what will fit and work well.

My bike is a Yamaha Crosscore RC, and the stock tires are 27.5" x 2". Any advice on how to choose studded tires, or on specific brands or models to check out?