Github, Gitlab, Bitbucket, Gogs, cgit, stagit, AWS codecommit, Stash, Google Cloud Source Repositories, Beanstalk, Codebase, planio, Cloudforge.. Some of these

Github, Gitlab, Bitbucket, Gogs, cgit, stagit, AWS codecommit, Stash, Google Cloud Source Repositories, Beanstalk, Codebase, planio, Cloudforge.. Some of these aren't comparable but there are hundreds of ways to host code in 2017. GitHub's network effect is definitely a thing however people are only a git push away from moving somewhere else.