Kentucky's Governor Andy Beshear is often cited as a potential democratic presidential candidate for 2028. His advantage is that he's a popular democratic governor in a red state.
I've always been unimpressed with his formal speeches and lack of charisma, but in this one-on-one podcast he looks great and seems smart and knowledgeable. If this were a job interview for a president to replace Trump, I would want to hire him. (Okay, Trump IS a low bar.)