Moneyline presents the 30 in '30 series, which forecasts the top players across various positions for the upcoming 2030 MLB season. The focus now shifts to second basemen, a position that often sees talent shifts due to the mobility of shortstop prospects moving down the defensive spectrum. Notable prospects include Jackson Holliday, who was drafted primarily as a shortstop but is now making his transition to second base at the major league level. This analysis includes both offensive and defensive evaluations, with a subjective approach based on projected performance.

Before delving into the rankings, it is crucial to acknowledge current prominent players likely nearing the end of their prime or considering positional changes before 2030. Ozzie Albies, Jose Altuve, and other veterans have been excluded under the expectation that their age will impact their rankings at second base.

Among the names projected to make an impact in the coming years is Termarr Johnson of the Pittsburgh Pirates, drafted fourth overall in 2022. Despite facing challenges during his minor league career, Johnson showcased a strong hitting capability. Other notable names to watch include rising stars such as Max Muncy from the Las Vegas Athletics, arriving on the heels of promising performances in the minors, and Juan Brito of the Cleveland Guardians, who had a breakout season in 2023. The list features an array of emerging talent and established players, indicating that the second base position could undergo significant changes by 2030.