Stuffed kong toys!!! He prob getting over tired/excited. If all else fails then a few seconds of time out in a room with he door shut- like 10-20 sec then invite him in again and give him something to do. If demands attention then time out again. He as to earn the responsibility to be with u only when he is calm and quiet. If saying no has not worked, then your timing is off as the attention has reinforced the behaviour. Dogs fined when you look at them, talk or touch them rewarding so sometimes you actually inatvertantly teach them that barking at you is the right thing to do.
I can pm you more games to play to teach not to mob for food/ attention etc - feel free to pm me. I run puppy groups at work, I'm a behaviour councillor of many years and just finishing a degree in dog behaviour. ( also I'm a vet nurse ).
Please do NOT use punishment on any dog esp a puppy!!! No rattle bottles etc! Can do so much damage to them and your relationship.