Whats best gas sedan 38+ mpg hwy?

Of any make or model actually. Additionally it needs to be capable of pulling a 5x 8 tractor supply trailer with light load on very rare occasions. I am looking to replace a 2006 Jetta tdi (diesel). Diesel is always about 30 cents higher than gas. So if my math is right, 38 mpg hwy is where a gas sedan equals the fuel cost per mile that my 44 mpg hwy jetta gets. I think theres a few used gas burning cars that are in the 40s Recommendations? Wanting to stay under $10k.
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