My expected score in neet 2019 is 590 .which college should I select? Sir

Dear Hasanthi,  590 is a very good score. You haven't mentioned your category and the State that you want to apply for. So it totally depends on what State you want to apply and if you want to apply under All India Quota or State Quota. State Quota has higher cut off marks. Neverthless, anything less than 550 in General is less. For Tamilnadu, it should be atleast 625. But for Himachal Pradesh it is around 300. And you cannot be eligible for State Quota of every State which means you should also try for All India Quota. But without having an idea of which State and Category you belong to, it is difficult to guess your chances. But in general 590 is a score that can give you the best colleges.