8. Noelvi Marte, Reds rookie third baseman
Keep in mind, these rankings have nothing to do with a player's potential. If that were the case, Noelvi Marte might be sitting in the Top 3 on this list. As it is, the Cincinnati Reds rookie, who'll still be considered a rookie in 2024, solidified himself during the final month of the 2023 season.
Marte had been mashing all season down in the minor leagues, but it wasn't until late-August that the Reds made the move to call up the 21-year-old. Marte had already been added to the 40-man roster during the previous offseason.
I'm not sure what the expectations were for Noelvi Marte, but it's safe to say that he exceeded him during the first 35 games of his major league career. Marte was, of course, the key piece of the trade last summer that sent Luis Castillo to the Seattle Mariners. That trade looks pretty good right about now.
The Cincinnati Reds may have found their third baseman. Marte hit for power and hit for average while also showing off some above-average speed on the base paths. While others like Spencer Steer and Christian Encarnacion-Strand can suit up and play the hot corner, that spot looks like Marte's to lose heading into spring training next year.