These tools come in free and premium versions, and are in use currently at CFUV. https://userway.org/
Plugins for converting WordPress to flat HTML.
I used this tool recently to circumvent a problem.
This seems very interesting: version 3 of the Text Analysis Portal for Research.
We’re big fans of WordPress. We like to use it. We recommend it.
What even is this! https://littleoutliner.com/