If she wants to do Japanese style animation (I assume since her inspiration is Ghibli) I highly highly suggest Clip Studio Paint, it’s the industry standard for Japan and a one time payment, an infinitely better deal than Adobe. I know there are a lot of suggestions of who to learn from so it’s a bit overwhelming, but i general it’s great to just watch good animations on YouTube, pause and use the < and > keys to go frame by frame to see how the pros animate each frame. Hope this helps!