Okay, this may sound crazy radical but if she is youngish, then maybe you may want to consider letting her develop her own styles. I think that touch-typing doesn't work as well with tiny fingers and much of their typing these days are on tablets and phones.
I tried to provide a touch typing application but my kids may have been too young at 7/8 so it didn't take. They got their own laptop around that time so they became responsible for their own typing. I knew many of their classmates' parents were doing their typing (and sometimes writing according to the parents) for school assigments/projects but I insisted that they do their own independently starting 3rd grade. I am really glad because this year in 5th grade in his online algebra course, DS had to do a lot of typing and it would have been problematic if someone had to follow him around to do the typing for him. He is fairly proficient now although his twin is better at it perhaps due to superior motor skills (compare to him).