The Citgo on Middle Valley just has premium non-ethanol.
Hi-Tech Hixson Pike as others said has regular non-ethanol.
Kangaroo Express on Lake Resort Drive near the round-abouts has regular non-ethanol too.
Citgo, by Walmart/ AT&T, on 153 has regular and high test ethanol free. Hi Tech on Hixson Pike, though if you are leaving CFP going home that way, crossing the traffic can be fun.