Actually reasonable car insurance?

I am 47, drive a nice, but 11 year old car. Have a very clean driving record for my 31 plus years of driving. A few months ago, on 35 I ran over something like a part of a bumper sitting in the middle of the road. It was late, hard to see and hard to avoid.

Due to this my insurance premium has gone up over 20 percent and now costs me 310 actual dollars to insure. I have a multi plan discount, an umbrella policy, etc.

I understand that this accident has to be accounted for. But this cost is just too damn high! I currently am with State Farm.

Does anyone have any good suggestions for who I could switch to for a better rate? Thanks!