Info on Labrador Retrievers?

I’ve never had my own actual puppy. I just had a miscarriage a few months ago & I’m going a lot better. I really wanted to have my 2nd baby. My kid’s already 5 year old, he also wanted a baby sister & was very sad when I told him the baby wasn’t gonna come because God needed him more then we did...

Anyway! My boyfriend asked me what’s my favorite kind of dog breeds, I told him & a few days later he found some puppies that were for adoption & so... tomorrow we will be getting our son a cute little puppy! 😍🐶💙

So anyone that’s had one feel free to give me all the advice you can on how to train him & such!