Having some kind of leader keybinding would be great along with something like "which-key" for discoverability.

Checking out Spacemacs or Doom Emacs would give a clear idea of what I'm talking about.

If unfamiliar with emacs, VSpaceCode is a VSCode extension that ports Spacemacs-style keybindings pretty successfully, although the UI is suboptimal due to limitations of VSCode extensions.