I've seen a lot of people with Isaiah Simmons projected 5th or higher in the draft contest. A few people have him going 10th, and I even saw one or two people who don't have him in their top 10.
Isaiah Simmons is the best defensive prospect in the history of the NFL Draft, in my opinion. He is essentially a lock to win DROY barring injury, regardless of who drafts him, and will win multiple DPOY awards. I know NFL front office guys are stupid, but they're not that stupid. If you think he goes outside of the top 4, let alone the top 10, you are high.
I'm very high on Joe Burrow, but Isaiah Simmons is the best player in the draft, and will instantly be a Darius Leonard type of player, except even better.