My Tavern Connects to Every Dynasty, and from the Start I Give the First Emperor a Longevity Pill

After transmigrating, Xiao Chen is surprised to discover that the unremarkable tavern he inherited can take people to different dynasties. What changes would history undergo if Qin Shi Huang had not died at Dune Sand, had received a pill granting him ten extra years of life, and knew what would happen after his death? After rewriting the early deaths of Empress Ma, Zhu Xiongying, and Zhu Biao, and learning of the Yongle Emperor's achievements, whom would Zhu Yuanzhang choose as the next emperor of the Ming Dynasty? When people discover that Xiao Chen's tavern can really take them to any dynasty, they go wild fighting for a spot.