Annerb on fanfiction.net has a number of good ones
https://www.fanfiction.net/u/763509/AnnerbA series that deals with miniJack in a more realistic manner then many
http://wintersong0.tripod.com/jinxingfate/stargate.htmIn the second of the series they get involved in normal high school activities like cheer, football, chess club.
Teal'c, Carter and O'Neill respectively