Gitlab has features of Github + strong support for CI and CD (similar to Atlassian tools). At work we are using Phabricator for PM/sprint management etc and Gitlab for CI-CD. It has features for fetching a project from github and create the CI-CD. Though I have worked only with Gitlab + Phabricator combination.

I have went ahead and created a group and created a mirror here : https://gitlab.com/SBCDAO/sbc

EDIT: There were permission issues earlier. Edited it now.