Yes you can use posture corrector belts easily available in market. However, it's recommended to go for proper posture correction exercises as they will benefit you in long run whereas belts are usually used for good appearance. Which is kind of fooling yourself. Go for proper posture correction exercises it will give you quick postive results.
Next Steps
Go for proper assessment and follow the exercises.
Health Tips
Focus on your sitting posture if you are sitting for longer periods.