For things like this I've found it enlightening to browse .gitconfig files on github, like this maybe:

https://github.com/search?q=alias+filename%3A.gitconfig+exte...

You get some pretty wildly interesting ones like https://github.com/jorge-barreto/dotfiles/blob/7769df698f14c... or https://github.com/zerochae/dotfiles/blob/6f972916228cf13f3b...

Unrelated but also nice is looking at how people bring sanity to tmux https://github.com/search?q=filename%3A.tmux.conf&type= which is how I found out about https://github.com/tmux-plugins/list