I collect content without permission for WP Struggles*. Please visit the original sites, especially to share and comment.
I do not want to depend on a plugin for this – too unreliable. I do have one though: the dev site is Organize Series, to the WP plugin Directory. If a plugin is abandoned I would have to find/replace/set-up each series with a new plugin. Sigh.
This article suggests creating your own plugin. But how do I update it? The article is ancient. 2012. https://code.tutsplus.com/tutorials/adding-post-series-functionality-to-wordpress-with-taxonomies–wp-25414
*My WP sites serve as my reference collections and notes for everything I do or have interest in for my use only. I use copied content on this MultiSite network toni-two.com and my ESL MultiSite at toni-esl.com.