"Fantasy Baseball Waiver Wire: Top Pickups and Sleeper Hitters for Week 4"

Colton Cowser, Michael Busch, Nelson Velázquez, Brett Baty, and Dean Kremer are among the top fantasy baseball waiver wire pickups. Cowser's recent performance and power potential make him a must-add, while Busch and Velázquez also offer strong hitting and power potential. Baty has shown promise after a slow start last season, and Kremer has impressed with his strikeout potential. Additionally, Michael Kopech is a valuable pickup for his closing potential with the Chicago White Sox.