Outside of Machado, who is also an option to step in at second, the next internal option is Kody Eaves.
Eaves showed plenty of promise last year with both Double-A Erie (124 wRC+, .200 ISO) and in the Arizona Fall League (.943 OPS), but he’s yet to play in the Majors and has 29 more career plate appearances than you do at the Triple-A level.
Because of this, it would certainly make sense for the Detroit Tigers to add another second base option.
As it would happen, one just become available in Jace Peterson.
Recently non-tendered by Atlanta, Peterson played in just 89 games for the National League East franchise last season.
All told, he logged 215 plate appearances.
At the very least, the veteran would give the Tigers another option to turn to up the middle.
The former first-round pick can also play shortstop, third base and left field, but his primary position is second base.