tl;dr:

  - zsh+ohmyzsh

  - fdfind      github.com/sharkdp/fd

  - duf         github.com/muesli/duf    "better df"

  - dust        github.com/bootandy/dust "more intuitive du"

  - tldr        github.com/tldr-pages/tldr-python-client  tldr client in python

  - ripgrep     github.com/BurntSushi/ripgrep

This constitutes the "great" tools, there are more that are "good"