Hello dear,
I hope you are doing well and good. As you expecting 576 marks in NEET examination 2021 so I'm here to informed you that as you know that every year the cut-off marks is increasing but you don't have to worry about it. According to your expecting marks you have chance of getting a good college but it's only depends on the which course you have to take admission. And the cut-off system of that college.
Below I'm providing a link which help you in predicting college.
https://medicine.careers360.com/neet-college-predictor?utm_source=qna&utm_medium=neet_cp
Goodluck!