Yes, you will definitely find much more quality content on Steemit than on other social networks.

Of course, there's still quite a number of trivial posts lacking in any worthwhile content, but among that stream, you will find plenty of good and even great posts.

And during your search for good posts, you can simultaneously attract followers. The best way to attract them is to glance through the various feeds (People you follow (Under the Steemit Beta icon), Trending, New, Hot, Promoted), and find posts that interest you.

When you find such posts, UPVOTE those you like, COMMENT on them, and then maybe REPLY to any replies that you get. Soon, you will see the number of your followers increase.

Onwards...