zsh Autocomplete

zsh shell by default does not come with auto suggestions facility unlike fish shell.

If you are looking for auto suggestions similar to fish, have a look at https://github.com/zsh-users/zsh-autosuggestions

For MAC OS, following steps are required to install

git clone https://github.com/zsh-users/zsh-autosuggestions ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-autosuggestions

Add into ~/.zshrc

plugins=( 
    # other plugins...
    zsh-autosuggestions
)