1.) Detroit Tigers pitcher Reese Olson features a full four-pitch mix.
There may not be a ton of data available in terms of Statcast since he has not made his debut, but a look at some of the MiLB footage shows a glimpse into what Olson does good and how he finds his success out there on the mound.
One of the things that Olson does well is mix in all four of his pitches. The fastball works with some arm-side life, and he's pitching from a high slot, which sometimes gives it some angle. His go-to breaking ball is more of a sweeping-slider or sweeper in today's game with that 10-4 shape and a ton of lateral movement.
The pitch can miss bats and tunnels well off of the fastball. His tertiary offering would be the sinking changeup. The pitch has good arm-side tumble and good depth to it, again, tumbling and tunneling off the fastball well.
Olson has also added in a curveball and developed the pitch well with more of a vertical break to it than the sweeper. The pitch is another asset to setup opposing hitters for "K pitches" and allow him to cruise through the batting order with ease, something he's done well in the minors.
Here's a look from 2022 of Olson showcasing all of his offerings in a clip that amounts to some pretty filthy pitches.