I also love:

- magit-blame: show the commits for each line - magit-find-file: allows you to open a file from any branch. So you can easily have the same file from two different branches opened side by side. - magit-log-buffer-file: shows the git tree with all commits that modified the file in the current buffer (which you can then navigate just like you would when doing M-x magit-status l l)

And this package is pretty sweet as well: https://melpa.org/#/git-timemachine , it allows you to navigate the git tree for a given file easily.