I like the gasbuddy site. Here in northeast Ohio we're getting regular 87 octane for as little as $2.35 a gallon. We also have a smattering of so called RV-Gas pumps that dispense ethanol free. The last time I filled gerry-cans it cost me $3.55 for 90 octane ethanol free. It's all I run in my hopped up stovebolt.
The guys at
Pure Gas do a great job of documenting where to find it.
regards,
stock49