We went with a company called Global Rescue, about $500 a yr. for 2. and an ACR Rescue Link. We each carry a 2M walkie talkie in our packs loaded with SAR and other emergency channels. Getting and emergency extraction is one thing, paying for it is a whole different matter.I googled "rescue insurance" and one of the sites was particularly informative, it was entitled
Accident and Rescue Insurance Tips Part One from "The backcountry skiing blog".
The author has personal experience with some of the different groups and is fairly opinionated.