Emacs Writing Addons Hub

https://tech.tonyballantyne.com/emacs/really-simple-scrivener-mode/

Using the display-buffer-alist to make sure newly created windows are docked in a specific corner. Use names like “BR” and “TR” on org-mode entries. When org-tree-to-indirect-buffer creates a window, the title of the element is part of the buffer, which matches the display buffer alist, and docks to that particular spot.

https://www.reddit.com/r/emacs/comments/48dp3e/what_are_some_options_for_writing_prose_on/

follow-mode to read text spilled across buffers in columns

http://www.howardism.org/Technical/Emacs/orgmode-wordprocessor.html

hide text formatting markup, replace bullet points with unicode.

https://explog.in/notes/writingsetup.html

olivetti-mode and setting org to wrap headings around the screen margin

https://github.com/kunalb/poet

using variable pitch fonts for writing prose

https://kodfabrik.com/journal/ia-writer-mode-for-emacs

make emacs look like iA Writer