Does anybody know how to contact the broadcasters for TNT and ESPN!?

Im doing a I-Search, for people who dont know what that is, it is a essay where you pick a career and interview the people who actually do the career, Do you guys know how I good get in contact with people like Mark Jackson, Mike Breen, Jeff Van Gundy, Dan Schulman, Marv Alberts, Doug Collins orKevin Harlin. i dont mean by phone number because i know nobody has the number, but does anyone know where i could find a email to contact them somehow. please help me out