They’re unlikely to trade Colas or Vera.
And I’m pretty sure they can pull any of those three deals off without Montgomery by adding lesser pieces to make it a 2-3 B/C prospect trade. That said, we really can’t outbid the Padres for Benintendi if they go all out.
So Kath, Kelley, Ramos, Rodriguez, Sosa, Cespedes, Adolfo, pretty much anything not nailed down in A/A+ ball in general. The Royals need power hitters, and they are likely to try to dump Dozier as well, so anyone pretty much with athleticism and/or plus power potential is who KC should logically be targeting.
Not as familiar with M’s and Reds, but it shouldn’t be that hard to match up successfully.