Finding People to Follow
You don’t need to find everyone to follow all at once. For most of us, following is a quiet, ongoing activity. Start out with a few obvious candidates, and when they @Mention someone else, click on the ID to learn more about that individual. If they’re interesting, follow; if they don’t stay interesting, unfollow.
Twitter gets interesting once you follow about 100 people. By that point, your Timeline shows enough diversity that it is not dominated by one or two noisy people.