The Heisman Trophy winner rushed for 158 yards and three touchdowns in Alabama's national championship win over Clemson on Monday night. Henry, at 6-foot-3, 242 pounds, ran for 2,219 yards and 28 touchdowns this season.
ESPN's Todd McShay has Henry rated as the No. 2 running back in the draft and No. 37 overall. Henry trails only Ohio State's Ezekiel Elliott, who has already declared for the draft, in McShay's rankings.
Alabama defensive tackle A'Shawn Robinson has also seriously considered entering the draft, according to sources.
Alabama will hold a news conference Friday at 3 p.m. ET for players to declare their draft intentions.
Before the College Football Playoff National Championship presented by AT&T, Howard told ESPN the team had voted not to receive their NFL draft feedback until after the game, to avoid distraction.
On Wednesday, four Clemson players announced that they will enter the draft.
The deadline to declare is Monday.