My sister has a PhD in English literature and has 5 years experience
teaching in college. She is looking for a career change to an area
where she can use some of her existing skills and get a better salary.
She has some experience in editing books/magazines. She is in the New
Jersey/New York area. I want to find out what would be good career
options for her and any good career consultants in the NY/NJ region.

The career counseling office of her university may help alumnae.
I suggest that she or you contact the office.