Just a word about Samantha Quinn's stories mentioned above.
One thing to keep in mind is that they are AU so the situations the characters find themselves in end up changing them from the characters they were on the show. That has to be taken into account. I do understand that there are those who dislike AU, so maybe this type of story may not be for all.
The other thing is that the perception of the characters is largely dependant on the POV of the character that the sections are written in. If the section is written from the POV of a character that dislikes Archer for example, (since he came up), then you have to take into account that the opinions of Archer are from that character's POV and consistent for that character.