4-Unit PA insurance recommendation

I have a 4 unit under contract in central PA, not actually Pittsburgh but close to Altoona PA.  My current carrier, State Farm, gave me a quote but agent also said they are probably not best carrier for this type of unit.  Does anyone have a recommendation to a insurance carrier who has good rates and coverage for a 4 unit building?  Right now looking at a $500k replacement cost policy which is close to $4k a year which is way higher than I was planning on. Was hoping to be more around $1200-1800 a year for insurance.  Any help you can give be much appreciated.  Been a while since had a unit under contract so glad to get ball rolling again.