symbol-menu

List variable and function with tabulated view.

Config example

(use-package symbol-menu
  :load-path <path-to-symbol-menu>
  :commands (list-functions list-variables))

If you have performance issue for list-functions, consider disable sorting by

(setq symbol-menu-should-sort-p nil)

It is recommended to install tablist for more features like mark and filter. For example, after adding below snippet to your config:

(use-package tablist
  :hook (tabulated-list-mode . tablist-minor-mode))

Now you can press / r <regex> RET to filter function/variable name by regular expression. Press / p will pop up to previous state.

Screenshot