I would try canidae all life stages food. I think the brown three protein food is good for a large breed puppy. I can’t quite remember but I do recall they had a good all life stages all breeds In the right range for large breed puppy growth. However there are grains in the all life stages. They have a grain free line called pure but none of those are for large breed growth. But I like the three protein all life stages because it has three proteins as the first three ingredients. For a grain inclusive kibble it’s pretty good.
