If you're writing a novel, I would actually avoid the stereotypical names, unless you want people to think the work is low-brow. Dare to defy expectations. People expect a Cletus. Give them something more normal but not too uptight... like Nolan or Patrick, maybe... and let the character define himself rather than the name.

Male names?

Haywood JaBlomey
Carl
Earl
Bob
Jimbob
William "Billy"
"Junior"
Samuel
Johnny
Willie
Charlie

EDIT: Bud "Buddy"

Then you've got your biker/blacksheep/criminal subset where everyone calls them by their nickname:
Axle
Brick
Scooter
Jack
Crankshaft
Mad Dog
Viper
Hoot
Blaze
Kneecap

Skeeter, Randy, Clyde

Bo

Luke

Cletus

Boss Hogg

This is discriminating and disrespecting. No one choose their names.

d'giornaldo, stefon, emton, marshall, tunbrocker

Bubba, Junior, Dale, Billy Ed, Dwayne, John Boy, Rooster, Bobby, Earl, Carl. For women Sammy, Carla, Porsha, Krystal (specifically with a K), Deb or Debbie.

Having grown up white trash and being middle aged I can tell you that most of them go by some nickname or another and those that don't generally go by their first and middle name.

What's your name?

Steve or Steven

Why that there is good ol’ Cletus “Soupcan” Crawford.

Bob Joe Jackson The 3rd

Billy-Bob.

Thadeus, Thad for short.

Keith, Clyde, Bob, Harold, Gerhard, Günther, Friedrich, Wilhelm, Guthrune, Claudia, Klaudia, Claudius, Klaudius, Edeltraut, Gerline,

Donald Scott Pete Peter Pam Doug Brooke Mitch Howard Palmer Robert Elon Sean Chris Kristi Lee Russell John Kelly Susie