Hey Sanjana,
If you want to maximize your chances of getting a job, you should go for reputed schools such as Duke, Michigan, or aim for Cornell’s MPS program. These schools have a good brand name, and thus they will help you get a good job. You can also try other schools such as Babson, or UT Dallas, both of these are STEM programs, and thus they will offer you a longer OPT period.
You will still get a pretty decent work visa, but you will need to work hard.
If you are really risk averse, you can apply to countries with a better immigration policy such as Canada or France.
Check out this blog article about Visa and Immigration:
https://www.mim-essay.com/blog/visa-and-immigration/This contains a brief overview of the policies of several countries.