See [Emacs](https://www.gnu.org/software/emacs/manual/html_node/emacs/Recentering.html): Ctrl-L `Scroll[s] the selected window so the current line is the center-most text line; on subsequent consecutive invocations, make the current line the top line, the bottom line, and so on in cyclic order`.
This is of little use on small screens or when `scroll_lines_around_cursor` is set, but in other cases it’s quite handy.