Whether there are fellowships, assistantships, or tuition scholarships available?
There are some options available but they are usually limited for international students. Please visit this page for more information. (https://tuition.asu.edu/financial-aid)
Some of the best ways to get financial help is to get an RA/TA position. This allows for a tuition fee waiver. However, it’s a difficult task. Reach out to professors conducting research in the area you are good at. Ask for such position availability, share your resume/work samples, and visit in person if possible.