Although he has not thrown an MLB pitch in 2020, Gregory Soto threw 1,109 pitches that were tracked by the PITCHf/x system in 2019, all of them occuring in the MLB Regular Season. In 2019, he relied primarily on his Sinker (96mph) and Slider (85mph), also mixing in a Fourseam Fastball (96mph) and Change (88mph).
Basic description of 2019 pitches compared to other LHP:
His sinker is thrown at a speed that's borderline unfair and has less armside run than typical. His slider is much harder than usual. His fourseam fastball is a real worm killer that generates an extreme number of groundballs compared to other pitchers' fourseamers, is blazing fast, has much less armside movement than typical and has some natural sinking action. His change is thrown extremely hard and is basically never swung at and missed compared to other pitchers' changeups.