I don't place my goalscorer bets until the teams announced (I always do anytime rather than first or last) - but was looking at Bet365 just now - and see they have both Brandon Buckley and Akheem Rose at 7/2, but Jordan Cook (two goals already this season) at 9/2.

If you want a tip  go for Jake Hessenthaler to score any time at 15/2, but wait until teams announced to be sure he's starting.