While he doesn't offer anything in terms of real-world efficiency, Matt Asiata has been a reasonable fantasy option recently.
He has shown some decent consistency over the last few weeks, with 8-plus fantasy points in 4 of his last 5 games. Eight points isn't particularly exciting, but heavy goal-line usage does give him upside.
In that five-game span, he has racked up 13 goal-line carries -- accounting for 87% of the team's total, while also meaning he touched the ball on 50% of the Vikings' goal-line snaps in that span.
This week's matchup should help with those efficiency concerns. Our metrics have the Colts ranked 22nd against the run.