In fantasy baseball, switching from batting average to on-base percentage (OBP) can drastically alter player valuations. Players like Aaron Judge and Juan Soto see significant increases, but their high average draft positions (ADPs) make them hard to target. However, several lesser-known players gain exceptional value in OBP leagues, like Ian Happ and Lars Nootbaar. Jorge Soler, with a projected 2025 slash of .234/.326/.458 and 27 home runs, is a compelling option as he hits behind Mike Trout. Meanwhile, JJ Bleday offers a solid profile with secured playing time, and Matt Wallner showcases elite OBP potential with a .372 from last season. Randy Arozarena’s discrepancy between batting average and OBP also makes him an intriguing pick, while Mike Trout remains a risk-reward candidate due to injury history but can still excel in OBP formats.