You will not get any better information than you can get from the free sources, and you may find yourself the victim of a scam. Funding can be in the form of loans and scholarships, with scholarships being the more common. Most programs require one year of service for each year of funding. Service payback is done as a military medical officer. The U.S. Public Health Service offers the National Health Service Corps scholarship to medical students who commit themselves to practice primary care medicine in federally designated physician shortage areas for their service payback.
Many states also have service payback programs.
The first thing you should do if you are an international student interested in attending a U.S. medical school is determine which schools admit international students. This information will be available in the Medical School Admissions Requirements handbook. Once you have determined which schools admit international students, you can investigate funding at those schools. Because sources of financial aid for medical students in the United States are limited, they are often restricted to U.S. citizens or students possessing a Permanent Resident Visa. International students are not eligible for any form of federal student financial aid.