Ridley to the Raiders would be cool. Seth Roberts, Amari Cooper and Jared Cook would make a pretty potent receiving corps. (not sure if ALL those players are still there - haven't kept up with FA)
Raiders added Jordy Nelson, so the likelihood of Ridley to the Raiders is next to none. Especially with the their holes on D. I'd say it's far more likely the Cardinals or Ravens take him. We all know Ozzies penchant for drafting Bama boys, but WR is also a huge position of need for them. The Ravens only proven receiver is Crabtree, and he's on a short term deal. The Cardinals will likely go QB, but Fitzgerald isn't getting any younger and their other receivers haven't developed at all. The Cards need weapons around Bradford aside from David Johnson if they want him to have any shot of success.
To answer the OP, we have 3 that are virtually guaranteed to go in the 1st. Two others are possible. Minkah is a consensus top 10 talent. His draft fate though largely depends on the run on QB's. If only 3 go in the top 10, He should be off the board around 7-10. If a team trades up though to over draft a fourth QB like Mayfield, (Such as the Cardinals or Bills) then he could fall to 10-12. Any lower than that would be a huge surprise.
There's a gap in mocks with Payne, but he typically goes 15-20. I'd say that he is the 3rd nearly guaranteed 1st rd pick. I'd expect a team like the Seahawks or Lions to take him. Seahawks have lost a fair amount of defensive talent and he would fit the Lions new defensive scheme quite well. Worst case he falls to end of the 1st where a team like the Patriots pick him up. I'd call him a 90% chance
Evans I'd say is a 75% chance. I don't think there's any chance that he falls out of the top 40 picks, but I've seen a handful have him very early 2nd. I fully believe the Steelers to take him. Bud Dupree has been a disappointment and Shazier is likely never going to play at the level he once was. If he's still on the board, it's a near guarantee unless the Steelers value another LB over him.
Last one with a chance is Ronnie Harrison. I've seen a handful of mocks show with him in the late 1st. This would shock me. I'm sure some teams love his size and hitting ability, but safeties like him rarely go too high due to the perceived coverage liabilities of his size. I'd call it a 10% chance and I'd expect mid-2nd for him at the earliest.