Other than Rivera, Michael Crabtree, and Wes Walker, I can't think of any other Texas Tech player.
Zach Tomas, who played for Miami, was a great linebacker, received seven Pro Bowl selections, five first-team All-Pro selections, and the honor of being on the 2000’s all-decade team.
E.J. Holub had a great career, was a five time American Football League All-Star. He was an All-Star playing Center for the Kansas City Chiefs and was also an All-Star playing Linebacker for the same team. He played in two Super Bowls, one year at Center and the other year as a Linebacker. He was the most versatile player during the Super Bowl era.
Donny Anderson (who lived on my wing at Sneed Hall) was a two-time All American as a Running Back, and as a rookie with the Green Bay Packers in 1966 Anderson signed the largest contract in NFL history worth three years and $600,000. He was named to the Pro Bowl and was a four time NFL champion and member of the Packer's Hall of Fame. In the Ice Bowl between the Packers and the Cowboys he kept many drives alive by catching passes out of the backfield, sad to say.
Receiver Dave Parks was the number one selection in the 1964 NFL Draft, going to San Francisco. In 1965 he lead the NFL with 80 catches, 1,344 yards and 12 touchdowns. Parks was honored three times as a Pro Bowl selection.
Running Back Timmy Smith played for the Redskins and he still owns the record for rushing in a Super Bowl with 204 yards in Super Bowl 22 against Denver.
Wide Receiver Danny Amendola plays for the Patriots and has had 339 career receptions in the NFL for 3,187 yards and 13 touchdowns. He also scored a touchdown in the New England Patriots’ Super Bowl victory in 2015.
Louis Vasquez played Guard for San Diego then after signing with Denver in 2013 he played in Super Bowl 48 and he was selected to participate in the 2014 Pro Bowl.
Quarterback Billie Joe Tolliver threw for 10,760 yards and 59 touchdowns for several different teams in the NFL.
Byron "Bam" Morris played for your team and he rushed for 73 yards and one touchdown in the Super Bowl which Dallas won.
Tight End Andre Tillman played five seasons for the Miami Dolphins who drafted him in the second round of the 1974 NFL Draft.
There were many other players from Tech who played in the NFL but did not have great careers there.