We have a new puppy as well. He will be our second dane. The first time around I did all the reading and took a class at Petsmart. The trainer was great for the basics, but we had no socialization bc our class was full of older dogs that were repeating bc the didnt get it the first time. Make sure you take a class full of puppies. Our dane learned to lunge and growl from another dog in the class and now hates all dogs on leash. I learned alot and that enabled me to work at home and I have a very well behaved dog.
Consistency is the key and a very yummy treat, we used salmon ones. We also used a clicker and then weaned off of it.
Here is Max with our new addition Harley, he is 9 weeks in this picture.