On Tuesday in the US and Canada the entire Studio Ghibli collection will be officially purchasable on digital streaming services, except The Wind Rises which is coming Q3 2020. They will cost $20 each movie, or $99 for a package of Howl's Moving Castle, Kiki's Delivery Service, My Neighbor Totoro, Ponyo, Princess Mononoke, and Spirited Away. Can be watched in Japanese or English dubbing, in "HD", will be sold on Amazon, Apple TV, Vudu, Google Play, Sony, Microsoft, and Fandango Now.
Then next year they will all be available for streaming on HBO Max.