Vet bed (cheap fluffy bit of blanket that goes in the washing machine) before you invest in a more pricey bed that is likely to get trashed, licky mats, dog peanut butter, puppy kong, didn't use crate, but did use a pen we got off amazon. Later we added a DIY roof as she was escaping over the top in the night - Houdini!
More important are things for you - I never got any but about this time last year I was dreaming of fleece lined crocs! Any cosy footwear that is easy to slip on and off for multiple trips into the garden for training, picking up poos, playing, general pottering about with your pup. Warm cosy dressing gown, pjs, coat, fleece for endless hours in the garden including the middle of the night when they are too little to hold their poos in all night! Also useful, some good books if you are going to sit cuddling them while they nap sometimes.
When your pup gets a bit older, then you can move away from the purely warm and functional to some nice dog walking boots, dog walking bag and waterproof. I try to treat the dog and myself equally! Lots of treats all round!
Don't buy but fish out some old boots or wellies to wear in the house when they are tiny as they can be bitey buggers and go for your feet. Source boots for your kids too as it is no fun being under puppy attack. I had a very strict no shoes in the house policy that went out the window with our pup.
Also great are blue cross puppy training videos on youtube - you can start watching now! I felt a bit overwhelmed by training and all the different advice but I thought these were easy to follow and really good.
Good luck! I found it hard but wonderful!