TOEFL and SSAT scores are just part of the admissions requirements and the top schools will also need to review your school grades and extra curricular activities to see if you excel in any specific areas. You have already identified the 20-50 schools for yourself which is a good start. You should try to learn more about the schools of your choice to see which ones are most suitable for yourself. Certain schools have individual interviews while others subscribe to Vericant and you need to inquire with each school.