By Rob Doster Here are this week’s best fantasy golf predictions and picks for the U.S. Open, with favorites to win and sleepers to build your DFS lineup for the sport’s third major of the year. The U.S. Open is set for June 16-19 at The Country Club in Brookline, Massachusetts. 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 U.S. Open lineup looks like in this week’s golfer predictions: Justin Thomas ($10,900)We’re tempted to go with Canadian Open winner and current conscience of the game R…