2. Make sure that your puppy has a variety of toys/bones that he is allowed to chew on with a variety of textures and levels of firmness. Eg rubber toys, nyla bones, plush toys, rope toys, bully sticks, raw marrow bones. Depending on where he is in his teething, he might sometimes need harder objects and softer toys at other times. Experiment.
Nylabone Variety Pack
https://www.amazon.ca/Nylabone-Dura-Regular-White-Triple/dp/B00JZIDFKK
Plush Toy with Rubber
https://www.amazon.ca/AITIME-Convex-Points-Chewing-Squeaker/dp/B07XXBC82H
Bully Sticks
https://www.amazon.ca/Alberta-Bully-Sticks-Treats-Inches/dp/B07TYJ5V28/