highly recommend Bill Hillmann training a retriever puppy. Takes you through puppyhood day by day actually. Cant speak enough good things about it, if you start off right, when it comes to training, wayyyyyy easier and getting into the right habits and bringing out his potential.
When he is 6 months old, then you can actually pick a program such as Lardy or Evan Graham and there are others out there. For experienced hard to beat Lardy period. For someone new, Graham does a much better dog in showing what you will experience as you go through basics such as obedience, force fetch and retrieving. he doesn't work with polished dogs
and the key to training dogs besides the hardest being the owners LOL, is knowing how to overcome obstacles to actually teach the dog.
big congrats with your new pal, exciting times ahead, nothing like puppy breath