Non-MLB
Although they have not thrown an MLB pitch in 2024, Oliver Pérez threw 12,144 pitches that were tracked by the PITCHf/x system between 2007 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Sinker (88mph) and Slider (77mph), also mixing in a Fourseam Fastball (89mph).
In 2022, compared to other LHP:
Their sinker is basically never swung at and missed compared to other pitchers' sinkers, has slight armside run, has slightly below average velo and has some natural sinking action. Their slider comes in below hitting speed, is basically never swung at and missed compared to other pitchers' sliders, has exceptional depth, has short glove-side cut and results in somewhat more flyballs compared to other pitchers' sliders. Their fourseam fastball (take this with a grain of salt because they've only thrown 5 of them in 2022) is basically never swung at and missed compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers, has some natural sinking action and has slightly below average velo.