Cheap Insurance

I recently found a car i wanted to buy it’s an Audi A6 first car purchase in my name. I’m 18, Live in the city, and I also had one accident that happen last year in july. I’ve been trying to get an Insurance Quote but everyone is charging me at least 1000+ some even 2500 which is insane. even when looking at other cars it’s insanely expensive. Is there anyway or anything I could
do to get cheaper insurance.