Well, I finally chose an engine for HumanShared.com
I'm going with BetterSearch, made by one of my favorite developers, Ajay D'Souza.
It pulls by the content of the post and taxonomies. I'm not sure if it will pull from the content of RSS feed shortcodes, so I'm trying to be very descriptive in the tags.

You can check out more of Ajay's work at:
https://webberzone.com

#HumanShared #HumanSearchEngine #BetterSearch #Webberzone