You've been given ALL of that advice in every single one of your threads but you seem resistant to the good tips that people have given you.
The picture you posted of yourself doesn't represent a person that eats 6,500 calories per day. If you actually are eating 6,509 calories a day, then why do you want a weight gainer recommendation?
You don't need any supplements at your age. This has been mentioned numerous times already.
Your training has been brought up in your threads about your training. You've stated you're involved in high school sports. I gave you a few options that will assist you in gaining muscle, becoming stronger, and building your athleticism. You didn't have any interest in those which is fine, but what exactly are you looking for now?