I have written an article on Medium (in french) to explain what is the way to start coding on GitHub when someone just connect to the site, so I have proposed three diffrent strategies :
My Star of all repos,
it means, choose the most starred repo on github.com/k0kubun/gitstar-ranking
Who answers my needs
it means, take a look at the awsome badge on github.com/sindresorhus
My preferred company
it means, go ahead and type the name of your preferred company after the slash in github.com
Then I've proposed to discuss other strategies.