As the saying goes, "touchdowns are king in fantasy football."

On a weekly basis, touchdowns are one of the most unpredictable stats around. After all, most teams only score a couple of them each week. Over the course of the season, though, things stabilize and become a bit more clear.

Taking a look at coaches' play-calling trends, players' usage rates, and players' efficiency numbers, we can identify players who have the ability to put up double-digit touchdown numbers, making them incredibly valuable assets in fantasy football.

I've already taken a look at five running backs and five wide receivers. Which quarterbacks should you target?