To find out about the schools in Crown Heights, you can go to the Dept. of Ed website and check the ratings. You can also look at the comments of parents at Inside Schools. Here are the two web addresses: http://schools.nyc.gov/default.htm http://insideschools.org/
Also, what makes a "good school" for one person may not be the same criteria for someone else, so focus on looking at the ratings and comments about the factors that are important to you.