Wordpress Post preview


New member
I am looking for a Plugin that replaces Links to a Wordpress Site with a preview of the Post.
Background, I want to run a Knowledge Base external over a Wordpress site an integrate the articles in Posts on-demand in the support forum.
I saw that feature with Youtube videos, where the link is replaced by the Youtube Player. That is exactly what I am looking for, just for Wordpress posts and not for videos.

The goal is not to sync all Posts between Wordpress and xenForo.

Any Ideas which plugin can achieve that?