What is a good replacement for binges due to too much stress?

Reduce stress: If stress causes you to binge, try to avoid situations with the potential to cause you stress by increasing those that bring you some pleasure. If stress is inevitable, then avoid buying and/ or proximity to those foods that you're likely to binge on.

Treat the cause: Although i agree with that symptom substitution (replacing the binging with a less destructive behavior) is a good part of the plan, overall stress reduction is likely to be a more effective long- term solution. In looking for a replacement for the binging, it needs to be something you enjoy that reduces anxiety, or it's not likely to work. Best of luck!