When you have no car but need SR22 insurance, you’ll file a non owner SR22 certificate for license reinstatement. Because there is no vehicle to be insured, non-owner SR22 insurance is cheaper than SR22 insurance with a vehicle. However, your cost for non owner insurance still depends on factors that vary from person to person.
Your license has been suspended, and you have no car but need SR22 insurance. The DMV tells you that you’ll have to pay a reinstatement fee and file an SR22 certificate to reinstate it. You’ve called a few companies. But since you don’t have a car and/or a valid driver’s license they can’t issue a non owner policy with an SR22.