I think Adrian Beltre sealed his spot getting to 3000 this year. Maybe Kershaw at some point if he keeps dominating but most of the pitchers out there seem to be in the "very good" category, imo.
he has a lifetime ERA of 2.36 and the only pitcher with a better ERA+ is a relief pitcher (Mo). He also has three CYAs under his belt. He's pitched 10 seasons, he's pretty much a lock.