ESPN is good for following draft availability each round

[007BengalsFan]

If you want to follow the NFL draft including the highest graded players still available to draft at each position or overall, ESPN's website is pretty useful for keeping tabs on who is still left the Bengals could target.  You have the overall ranking of guys available or you can click on the position to see the best available at each position.

https://www.espn.com/nfl/draft/bestavailable