I'm going to try and rec some Tok'ra fics - I saw that was one of the themes, and it seems it's been a while since that genre was recced.

Title: Early Beginnings
Author's LJ/DWJ:roeskva
Categories: Drama
Warnings: None
Author's Webpage/Fic list: On ff.net (PG-13 versions) On DW (some versions higher rated, and more stories)
Link to story: http://www.fanfiction.net/s/5093866/1/Early_Beginnings
Why this should be read: An interesting look at the very early days of the Tok'ra (since before the Tok'ra existed), and why some of them - especially Jolinar and Egeria - became Tok'ra. I really love background fic, and this gives a wonderful account of not only Jolinar's early life and how she became a Tok'ra, but also shows much about Goa'uld society.

 

( Jolinar and her first host talking. )

 

This story has sequels (Undercover - the Life of a Tok'ra Operative) and (The Fall of Setona). The first of these follows Jolinar as a Tok'ra undercover operative, the other is background for Martouf, and how he became Lantash's host. Both of those have a minor amount of romance at the end (canon ship - Jolinar/Lantash).