As you have not mentioned about your domicile state, so t your score of 30 and SC category reservation I will be only discussing about your chances under All India counselling seats.
There is 15% quota for gov. seats and then deemed university counselling. https://medicine.careers360.com/articles/neet-cut-off-for-government-colleges follow this link for 15% gov college seats, but you seem to have no chance as the minimum cutoff is 450+
Now, for deemed colleges or any other private college there is no category reservation in management quota; for that also your score is not enough.
It would be easier if you update with your state, then there are more chances.
For your better assistance I would suggest you the college predictor link https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer