Rent To Own Auto I Do Not Own A Car.Is There Someway For Me To Get An Auto Insurance?

I do not own a car.Is there someway for me to get an auto insurance? - rent to own auto

I am 28 and have no car. However, rental cars often and whenever the cost of insurance is very high. Is there any way I could get a self-insurance, for example 6 months or less at once? What is the typical cost for this? What are the best agencies? Thanks