Setting the minimum PAs at 50, there are 58 guys in MLB who meet FG's definition of "CFer".
Of those, only 29 guys have an xwOBA over .310 as a CFer.
Counting the sellers to be: Marlins, Reds, Pirates, Rockies, DBacks, Os, Tigers, Twins, Ms, Rangers and Angels (and removing guys like Buxton and Trout) gives us this list:
Naquin - cheap rental, bats LHH, might be a decent Ender replacement
Senzel - almost certainly not available
Marte - premium rental bat on the market
Reynolds - pre-arb guy who's the ideal leadoff candidate...probably unavailable
Lewis - pre-arb guy who's probably not getting traded
Garcia - oddest breakout of the season, and I don't think I'd want to risk buying fools gold
So we are looking at Naquin to replace Ender, or Marte to be an additional impact bat.
I imagine every contender will be after Marte, and the price will be understandably high...if the Marlins even become sellers. I would LOVE Reynolds, but so would 20 other teams.
Naquin and his .794 OPS vs RHP would fit well on this roster as a replacement for Ender. Heredia would have to be used to limit his exposure to LHP.
My choice is to grab Naquin for whatever poo-poo platter of arms the Reds want just like they took for Adam Duvall, then ride a Naquin/Heredia platoon in CF to glory untold.
But really, I think AA should focus on arms...specifically 1-2 RHP out of the BP and maybe a SP like Jon Gray.