Yeah, I use about a dozen git aliases in my normal workflow. In case it's helpful, here are the relevant ones for this flow:

  alias git_main_branch='git rev-parse --abbrev-ref origin/HEAD | cut -d/ -f2'
  alias gapa='git add --patch'
  alias grbm='git rebase -i --autosquash $(git_main_branch)'
  alias gfx='git commit --fixup $(git log $(git_main_branch)..HEAD --oneline| fzf| cut -d" " -f1)'

Another favorite is:

  alias gmru="git for-each-ref --sort=-committerdate --count=50 refs/heads/ --format='%(HEAD) %(refname:short) | %(committerdate:relative) | %(contents:subject)'| fzf | sed -e 's/^[^[[:alnum:]]]*[[:space:]]*//' | cut -d' ' -f1| xargs -I _ git checkout _"

gmru (git most recently used) will show you the branches you've been working on recently and let you use fzf to select one to check out.