The number and standardized tests is too long to list or discuss here. I can help you prepare yourself for any commercial test.
I have noticed that some of these tests have a clear cultural bias against those who have not been raised in the American/British West.
Many Chinese students may understand a specific term using a dictionary-based definition when the question calls for more of a cultural understanding of how the meaning is to be understood in a particular context.
This places an additional, often unrecognized, burden on you the non-native English speaker. Working together over services like Wechat and Skype you and I will work through every type of problem that you have difficulties with.
The skills involved include:
Reading
Writing
Listening
Speaking
The tests include:
ACT;
ETS;
GMAT;
GRE,
IELTS;
Interview Preparation-Visas; Admission to Graduate, University, High School;
LSAT;
MCAT;
Pearson;
SAT;
TOEFL;
TOEIC;