Do you know about what size she is? Im autistic so I have a lot of sensory issues related to clothes. My favorite leggings are vera wang from kohls (a lot of my clothes are from Kohls, they tend to have comfy stuff at reasonable prices) I like to wear them with a tunic top like this: amazon tunic, or a flowy shirt from torrid's super soft line. Depending on her style hot topic has a lot of cute tops, I typically get at least an XL (and I'm a size 14) but they do have plus sizes online. Also, target's graphic tees are super cute, and come in a wide variety of sizes.