There are eight primary second baseman, though there are a lot of players who will play in several positions around the diamond.
A perfect example of utility is Blake Allemand. He primarily plays second, but he has plenty of experience at short and third as well. The 2015 fifth rounder hit .256 in 97 games for Double A Biloxi in 2017.
Javier Betancourt tied his career high with six homeruns in 2017 playing for Biloxi with a .243 average. He has played quite a bit of third base during his time in the minors as well, but mostly second. Last season he logged only an inning at shortstop, but has quite a bit of experience there.
As a late round pick in 2017, Kenny Corey played a lot better than expected. In 52 games across two teams his batting average sat at .328. His strikeout numbers were a little high though. He saw time all over the field though, logging innings at second, third, shortstop, and in the outfield.
This 20 year old was originally a shortstop. After playing there in 2014, Franly Mallen shifted to second base and has not looked back. Offensively he hit .225 last season, but the year before showed a .279 average. Both of those numbers coming with Helena.
A former Competitive Balance B pick, Tucker Neuhaus is only 22 and has five seasons under his belt. Last season playing for Wisconsin, he hit .245 while striking out 99 times in 87 games. He played a little third, but primarily is at second.
When Aaron Hill was shipped off in 2016, Wendell Rijo was one of the players the Milwaukee Brewers got in return. After hitting .254 with Carolina, he got called up to Biloxi. Double was not too kind to him, as he found himself hitting .185 through 41 games
After being an eighth round selection in 2016, Francisco Thomas has spent two years playing for the AZL Brewers. Through 40 total games, he shows a career batting average of .184. The switch hitter will turn 20 in August.