I have scored 58 nta score in jee main january 2020 and I belong to obc category , in which nit colleges will I get admission?

Hey,
The cutoff changes every year depending upon the difficulty level of the question paper,the number of candidates appearing in the examination and the category of the candidates etcetra. Your rank based on your NTA percentile score is around 3,64,984 which is tad too less for you to get any good government Engineering colleges.
You can use the the College Predictor of Careers360 to predict your chances in the college using the link given below:

Hope this helps.
Good luck.