From this answer I understand that it important to get into a top schools with top graduate programs because of the large number of higher quality peers makes a big difference.
I am wondering how do I find those schools? Do I need to look into this list R1: Doctoral Universities – Very high research activity.
I am also under the assumption that some schools have a good graduate program on very specific areas that won't show up in the above list. Where do I find those schools?