Fandom Classics

Hi, I'm brand new to the series and the fandom, but not fanfiction in general.  I know each fandom has those classic stories or authors that everyone has read, the ones that top rec-lists everywhere.  I would like to read those stories.  So, please, point me towards the best of the best and help make my introduction to the characters easier.

If there are pairings, please indicate. I'm finding myself partial to Reid, Hotch, Garcia, Rossi, Prentiss and Morgan (In that order, roughly. Some share ranks.) And Mods, if this type of request isn't allowed feel free to delete.

Thank you for your time, 

PaintedAme