There aren't. Parsons is an off-ball LB who certainly has flaws to his game and there hasn't been a corner drafted in the top 10 in the last decade who was worth the investment...hardly even any in the top 20. Here's all of the top-20 corners dating back to 2010, bold is top 10.
2010: Joe Haden, Kareem Jackson
2011: Patrick Peterson, Prince Amukamara
2012: Morris Claiborne, Stephon Gilmore, Dre Kirkpatrick
2013: Dee Milliner, DJ Hayden
2014: Justin Gilbert, Kyle Fuller\
2015: Trae Waynes, Kevin Johnson, Marcus Peters
2016: Jalen Ramsey, Eli Apple, Vernon Hargreaves
2017: Marshon Lattimore, Marlon Humphrey, Adoree Jackson
2018: Denzel Ward, Jaire Alexander
2020: Jeff Okudah, CJ Henderson, AJ Terrell, Damon Arnette
The hit rate of a guy being worth a top-10 pick at corner is what, 10%?