Check out these pages for more information on
English Proficiency Resources & Registration Information: IELTS/TOEFL/DUOLINGO
SAT & College Board Resources & Registration Information
ACT Resources & Registration Information
Invest the time in yourself to determine which is best suited to your needs by taking this diagnostic assessment from our friends at UES:
https://www.act.org/content/dam/act/unsecured/documents/global/International-ACT-SAT-Comparison.pdf
Check out this great resource:
https://www.fairtest.org/university/optional