I have to drive from the country to get to them, but we have our own gas station facilities here w/ 3-1,000gal underground tanks on the Farm. Convenience stores and gas stations are full of them. I avoid them when I can, since we get on-site Farm fuel deliveries every 2-3 weeks, depending upon the season.
I don’t see any in retail merchant stores. Yet. But I don’t go into the big cities at all, since I carry concealed and some of them have “different rules/regs” than state law allows. They’re slowly/quietly taking over, I’ve heard.