Me and my girlfriend are raising a hamster together and we know that his enclosure isn’t the best so is there any tips on what to add?

Right now, the bedding is very shallow and I want to add like maybe PVC pipes for his tunnels But I’m worried that he’ll chew on them but you don’t get a lot of them from Amazon for the regular plastic clear ones I also want to give him stuff to climb on, but I don’t know what will be good for him and better bedding instead of the regular store-bought ones that are generic cheap ones. I don’t know I want my son to live like a king 😭