Per Fangraphs, the pitches with the highest value so far this year:
Fastball-Tyler Glasnow
Slider-Yu Darvish
Cutter-Corbin Burnes
Curveball-Julio Urias
Changeup-John Means
Splitter-Kevin Gausman

— Buster Olney (@Buster_ESPN) May 5, 2021