For all but the four remaining playoff teams, October ended all too quickly. The A's, Brewers, Twins, Rays, Braves and Dodgers all made it to the postseason, but their postseasons are over.

So what's next?

Well, it's about time for them to start looking at the upcoming free-agent class. For a team that just made it to the postseason, but needs to take the next step, a few key acquisitions in the offseason can make all the difference.

Here are the free agents who could help -- one fit for every 2019 playoff team that's been eliminated in the Wild Card Games and Division Series.