Over the next six weeks, fantasy game managers will find out if their teams are contenders or pretenders. Injuries will crush outcomes, but there will be times when a nucleus of players perform the best over the last three months of the year. The goal each week is to find upgrades in the free agent pool, but the rhythm of the game sometimes brings the most help at the right time (a top replacement second baseman on the waiver wire when your team has an injury at the position). Here’s a look at the top hitting free agents this week in one of my NFBC 12-team leagues: Week 6 Fantasy Baseball Waiver Wire Catchers St. Louis Cardinals catcher Pedro Pages (43) runs to first base on a hit during the fourth inning against the Houston Astros at Daikin Park. | Troy Taormina-Imagn Images Pedro Pages, St. Louis Cardinals (1% Rostered) Over his last five starts, covering eight games for the Cardinals, Pages has a hit in each matchup (8-for-19 with two runs, two home runs, three RBIs, and one steal).…