RE: [External] : How can I automatically determine the best frame-height?

[Drew Adams]

Library `fit-frame.el' (and perhaps library
`autofit-frame.el) might help you.

It fits a frame to the textual content.
It doesn't bother trying to do pixel-level
fitting.  You can set max height and width.

There are also some related features in
library `frame-cmds.el' - e.g. option
`available-screen-pixel-bounds'.

All of these libraries are in the Emacs Wiki
Elisp Area:

https://www.emacswiki.org/emacs?action=elisp-area