Rather than continue to post individual posts per player, here is current known list:

Oni Omoile OL Iowa State
Denver Kirkland, OL, Arkansas
Johnny Holton, WR, Cincinnati
Max McCaffrey, WR, Duke
Ryan O’ Malley, TE, Pennsylvania
Drew Iddings, DE, South Dakota
James Cowser, DE, Southern Utah
Marvin Hall, WR, Washington
Darius Latham, DT, Indiana
KJ Brent, WR, Wake Forest
Terran Vaughn, OL, Stephen F Austin
Kyrie Wilson, LB, Fresno State
Antonio Hamilton, DB, South Carolina State
Jalen Richard, RB, Southern Miss
Perez Ford, LB, Northern Illinois
Jaydon Mickens, WR, Washington
Ryan Simmons, LB, Oklahoma State
Greg Townsend Jr, DE, USC

Not 100% sure about this one, his own post about joining the Raiders has been deleted but one from Derek Carr welcoming him to the Raiders is still there:
Pig Howard, WR, Tennessee

Pig Howard, WR, Tennessee

Greg Townsend Jr, DE, USC

Son of former Raider Greg Townsend signs with the Raiders.

Jalen Richard, RB, Southern Miss

Richard rushed for just 391 total yards in his first three seasons combined with Southern Miss, but erupted for 1,098 yards on the ground in his final year with 14 rushing touchdowns.

Richard added 284 yards receiving with a pair of scores and added a TD on a 95-yard kickoff return.

Five times he had one hundred yard games, including three consecutive during the team’s six-game winning streak.

Denver Kirkland, OL, Arkansas.

One Raider fan should be very happy with this pick given he drafted Kirkland in 4th round of his mock draft:

Oni Omolie, OL, Iowa State:

Son of Denver Bronco WR Ed McCaffrey signs with Raiders:

With the 13th pick in the seventh round, the Raider select Vadal Alexander:

https://www.youtube.com/watch?v=Hr_7cYFqp7s