Which of the existent LMS offers a better integration with GitHub and better fits the set of methodologies you use in GitHub Education?
Interestingly, GitHub is working out an integration with Google Classroom.
In particular, I’ve used Google Classroom as a tool per se and I enjoyed it quite a lot.
I will consider to experiment with Google Classroom for the incoming course.
At our institution we use Moodle but I believe it has not much to offer in this regard.