By Rob Doster Here are this week’s best fantasy golf predictions and picks for the PGA Tour’s Travelers Championship, with favorites to win and sleepers to build your DFS lineup. The Travelers Championship is set for June 23-26 at TPC River Highlands in Cromwell, Connecticut. That means it’s time to pick your optimal DraftKings fantasy golf lineup. Fortunately, our fantasy golf experts are ready to help. Here’s what our best Travelers Championship lineup looks like in this week’s golfer predictions: Patrick Cantlay ($10,200)Even though it comes the week after a tense and exhausting major champ…