Trek Domane, Specialized Roubaix and Giant Defy all are endurance road bikes with relatively high stack to reach ratio. I like stack and have the Domane and Defy.
As I've gotten a bit more flexible (I'm 62), there are endurance bikes with that are slightly more aero, but still within the endurance range. They include the Canyon Endurace, Bianchi Infinito, Scott Addict SE, and I'm sure a few more.
I recently purchased the Infinito, and it still fits well within my parameters of comfort.
I don't know if you want new or used. Canyon is probably best bang for the buck right now.
Forgot to mention, I take up to a 3" drop max. from saddle to bar height.
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Ride hard and ride on......
Last edited by wthensler; 07-08-20 at 07:16 PM.