Working at the Command Line is a superpower especially when combined with auto-suggestions from tools such as zsh + oh-my-zsh.

I would be completely lost if I didn’t have the auto suggestions as my “second brain” !

One problem though — to run a variant of an existing previous command, I find myself editing super long command lines, I.e bring up a previous command by accepting the auto-suggestion, then Ctl-b thru it and make an edit to run a new variant. This made me wonder: is there some tool that presents a TUI type of 2-dimensional interface that lets me navigate through the various options using arrow keys etc ?

Have you looked at hstr?

https://github.com/dvorka/hstr