Welcome
First, you can just hang out on YT.
You can puppy proof the house.
Decide what foods are best to feed.
Look at the vaccinations usually given and decide if you want to give all of those, what ones are necessary in your area and how often they should be given.
Talk to vets and maybe even tour their offices to pick just the right one.
Save up about a kazillion dollars for toys and accessories.
Read books on training and behavior.
Pick your groomer or read up on how to do it yourself.
I see a lot of people trying to decide what vaccines should be given one day before their first vet appointment. It is really best to take your time and research. The same goes for the food.