Most USA colleges and universities require one or more standardized admissions tests to fetch admissions into both their Undergraduate and Postgraduate programmes. Each University has different criteria for the admission.

In order to study in US Universities, You must obtain decent score in the entrance tests TOEFL, IELTS (English proficiency tests) or SAT, GRE, GMAT Aptitude test.

It depends which programme or University you wish to take the admission as I already told you that each university has different crititeria.

You can refer the below given article for the information about the US Universities.

https://studyabroad.careers360.com/articles/study-in-us

Good Luck!