Sugar free gum was my substitute of choice. Early in my quit, I gave myself no limit on how much gum I went through.
Use fake dip, sunflower seeds, fireballs, jolly ranchers. Whatever. As long as it doesn't have nicotine, have at it.
I'm almost six months into my quit, and it hasn't been too long since I quit using the gum. It's taken a long time, but I finally don't need it anymore.
Just stay quit.