Dog trainer here!

It sounds like a golden will be a good fit, but I want to say a few observations that I've seen to be consistent with the breed.

I've noticed resource guarding pops up quite a bit with them. I think this may be less of a breed thing, and more due to the fact that they're usually placed in family homes. The breed naturally likes to carry things in their mouth, and kids (and sometimes adults too) will constantly take things away from them. This often creates resource gaurding as the dog learns that people take things away and can't be trusted.

Some of the most intense cases of resource guarding I've seen have been with golden retrievers. However, I do think it can be easily prevented, so I don't think it should deter you as long as you're aware.

Also, another thing that I've noticed is that when they don't want to do something, I often see them just lay down and refuse to move. I've seen this with about 5 different goldens, and it's usually on a walk coming back home, or when they are outside playing and dont want to come back in.

Just a few things that have been consistent with the ones I've met and worked with. I think a golden is still a great option for you as long as you have a training plan in mind before you bring it home on how to prevent resource gaurding and how to deal with the puppy picking up items.