[ash]

Thanks! Fish is close, but not there yet. It provides only a single autocomplete suggestion. I had to press Tab to get a list of suggestions. So:

bash: no auto suggestion at all, Tab twice to see a list

fish: shows single auto suggestion, Tab once to get a list

zsh + zsh-autosuggestions: looks similar to fish behaviour

Is there some combination of shell/plugin/terminal that provides multiple auto suggestions?