I’d stick to training, socialising, taking him in the car, and teaching him to settle (I.e not needing attention just because you’re there).
Goldies can be an absolute nightmare between about 10-16 weeks with teething, over-stimulation and generally being little nobs. So early training is key, get them to listen to you and to know that you = rewards and food. This is the prime time to build a bond - so avoid leaving him to find food elsewhere. You = food. Majority of meals = rewards for training.
So: Down, extended down, sit, extended sit, recall, getting him used to having ears cleaned, teeth cleaned, paws examined, groomed, balls held etc. Teach hand sifnals to go with those vocal commands.
You can teach extended down or sit by walking a step away and increasing this over time.
No need to go bonkers on the food rewards nor on food based toys. Goldies were bred to work, so things like squeaky today are just as good at stimulating them as any food based rewards. Better tbh, as it works with their instincts (theres a reason squeaky toys don’t last long around them).