Looking for a Plugin that works like a server side include

[ Moderator note: moved to Fixing WordPress. ]

Trying to find a plugin that works like a Server Side Include for our site.

For example, our site is at book-editing.com and all of our editors are listed at https://www.book-editing.com/book-editors.html

We use a brief html page for each editor and list them through server side includes on the page using the following code:

          <p><a href="book-consultant-bios/editor/index.html">Editor Name</a></p>
          <!--#include virtual="book-consultant-bios/editor/brief.html"-->
          <hr>

So I am looking for a plugin that will work similarly so I do not have to cut and paste their bio information on all the different genre pages.

Anything like that out there?