The East-West Shrine Game is often a good place every year to try and find steals in the NFL Draft.
The Bengals should look very closely at the players there to try and find the best players available. Whether they look at players to draft or just look for ones to add as undrafted free agents, they can certainly find good value in the Shrine Game.
In 2016, the Bengals drafted Cody Core, who played in the Shrine Game, over Robby Anderson, who also played in the Shrine Game and went undrafted.