Himalayan cheese chews, long lasting, all natural, made of cheese, available on Amazon.
Freeze dried liver or freeze dried chicken treats are good training treats, along with carrot pieces, sweet potato, apple pieces, green beans, cheese, chicken.
Bully sticks. Give in moderation at first, they can cause diarrhea if they have too much.
No rawhide or cooked bones. But uncooked raw meaty bones are fine.
Healthy Edibles brand has “puppy” chew/treats. There are also “Puppy” teething rings. Benebones/Nylabones also work well (especially peanut butter and bacon ones).