Firstly here is a link to the analysis…

https://bleacherreport.com/articles/2441018-which-positions-are-the-safest-riskiest-at-the-top-of-the-nfl-draft

Cliff notes of the results…

If you are drafting in the top 5 safety is one of the surest ways to get a perrenial pro bowler…

Conversely - drafting a defensive lineman is one of the riskiest - with a very high bust rate…

This is why I am such an advocate of drafting Hamilton over Hutchinson or Thibodeauz