If you find pumps without the ethanol stickers they are good. They have to by law have ethanol stickers on pumps that have ethanol gas.
If and once you find a place selling pure gas, tel l them that’s the only reason you’re filling up there and you will be a regular customer as long as they sell pure gas. The several I know of have no plans to sell ethanol gas, because so many people going to them they know are going to them for good gas.
I haven’t seen the stickers where I fill up, but maybe because it’s a state mandated 10% blend they don’t have to do it?
It seems the most convenient stations for me locally have ethanol. I've been driving out of my way a little bit (more of a time factor that extra miles) to get ethanol free gas locally. On the road it's actually easier. Three of my weekly destinations have fairly convenient stations. I know of stations nearly 100 miles from my house that I can stop at.
One morning I was in a hurry so I got a few dollars of gas at the local station with ethanol. I burned through gas so fast I thought I had a leak. I seriously considered having my car towed. On the road I filled up with non ethanol gas - problem solved. The mechanic said there may have been too much ethanol or some other problem with the gas.