Can we book visa slot with one i20 and then change to other?

I have i20 from a few school, namely NCSU, ASU and others. And I am still waiting for i20 from TAMU. But TAMU is taking

Admits from UChicago MScA, NEU MS- DAE and CU Boulder MSDS

Which one should I go for? UChicago course is the shortest which is my only concern(15 month)

Hi can someone rate my chances in these unis

8 cgpa, Electronics and computer, 13+ months of internship + work ex in data science field, good in nlp. Gre waived off

Can anyone please provide details about the best consultancy in Pune or someone who helps online..

Can anyone please provide details about the best consultancy in Pune or someone who helps online for providing services