With fzf you can add lots of files to git while skipping some if you want:

    fza = "!git ls-files -m -o --exclude-standard | fzf -m --print0 | xargs -0 git add"

With that in the [alias] section of a gitconfig file, running git fza brings up a list of modified and not yet added files, space toggles each entry and moves to the next entry.

That alias as well as fzf+fd really speed up some parts of my workflow.

Oh and shameless plug for my guide on what to include in your zsh setup on macOS: https://gist.github.com/aclarknexient/0ffcb98aa262c585c49d4b...