First step is that you probably have to apply to 6-8 universities.
2-4 top universities
2-4 medium universities
2-4 safe universities
this combination depends on your GRE score, TOEFL Score, Academics etc.
First, for shortlisting of universities depending on GRE score, you can use the link below
Next for checking the rankings for your department or field of study you can go to
For selection of safe universities you can go to the following post
For MS in CS you can use the acceptance estimator(prepared by dept. of CS, UT EL Paso)
To search for a program you can go to the following post
You can also visit Tips for selecting a University based on your profile