Cozy Mystery Agents

I don't know about best, but for the interested ones a quick highlight through "Writer's Marketplace" listed dozens of agents who specifically read Cozy Mysteries. I've bookmarked them for when I'm ready to submit.

MFM

BookEnds. They sell a TON of cozies. Jacky Sach used to be an editor at Berkley. They have an excellent website and blog. Sorry, I don't have the links handy--just Google BookEnds Literary Agency. I know several writers repped by them and they're very happy.

Do some research. One of the things I did was use the Writer's Market to come up with a list of names of agents who represented a particular genre. Then I looked at their Web sites for clients they represented that I had read. Sometimes I found the agent's name in the acknowledgements of the book, but most often it was straight off the agent's Web site.

I heartily second BookEnds. They are seriously nice women, who (in my experience) gave me some very helpful advice. BookEnds is in my top ten for my next go-around of queries.

To search further afield you might try agentquery and search by genre, or spring for a Publishers Marketplace subscription which runs at $20 per month. There you can run a search and find out which agents represent which authors.