One comp for Kiki Hernandez might be Seattle's Adam Frazier, a pending free agent who is four months younger than Hernandez.
Frazier is a second baseman who this season has made 35 appearances in the outfield and two at shortstop.
A 2021 All Star, Frazier has posted 11.6 fWAR (and 99 wRC+) in 809 career games, including 3.6 fWAR (and 113 wRC+) in 155 games last year.
Hernandez has posted 12.3 fWAR (and 99 wRC+) in 903 career games, including 4.1 fWAR (and 109 wRC+) in 134 games last year.
This season Frazier has posted 1.2 fWAR (and 81 wRC+) in 144 games while Hernandez has posted 0.4 fWAR (and 81 wRC+) in 79 games.
What would be an appropriate free agent contract for Frazier, who is earning $8 million in his final arbitration season?