Shop around. Do your research. Go online and choose different companies. Sites like esurance.com allows you to fill out a form and get quotes from different companies.
Know what you can afford. Make an assessment of what you will be able to payout each month. Do a monthly budget and see what you will be able to pay per month.
Once you receive quotes from several companies, read and understand fully what each policy covers. Decide on which offer matches your situation best.
Make sure you choose a policy that continues and renews.