Insurance in general has gone up because underwriters are pulling out of CA. A lot of SFH in fire zones are not getting renewal notices and those folks are finding it problematic to get another carrier to insure them.
In general , Allstate doubled my rental and primary insurance, so I went to Costco who subcontracts it to Foremost( a Farmers subsidiary) that basically gave me a rate similar to Allstate before they jacked it up.
for my primary, my insurance broker found me a policy with American Modern for much less