Scholarships for international students are not as numerous as those for U.S. students because many scholarships are funded by national and/or state governments.
A recent article posted on internationalfinancialaidblog.com explains where international students receive the majority of their funding. Below is a chart explaining their study.
Ultimately, the best place to start your search for scholarships as international students is to contact the institution where you plan to study. Below are additional resources that you can use to find other scholarship opportunities for international students.