Damien Williams has the most value if he remains the starter. However, he will have to produce early and often to start the season or I could see KC going to a time share. Kittle would be the safer pick with a +8 round difference although I expect regression out of him this season with all the weapons for Jimmy in SF.
I would go either D Will or L Bell. If I got Kamara/Bell with my first 2 picks in any draft, not even keeper, I’d be happy. I don’t like Gase and think Bell is playing on a team with a terrible o-line, inexperienced QB and not many outside weapons to give Bell running lanes. With that said, he will get 300+ touches this year easily.