Here's a fantastic exploration of a side of the SGC that should exist:
goldjadeocean's
E is for Environment, featuring Dr. Helen Meyer, a psychologist who specializes in treating former hosts. Special attention is given to Sarah Gardener and Vala Mal Doran, with intriguing speculation on other former hosts out there and the implications of Tok'ra actions. Warning for language and mature themes, including discussion of suicide and torture.
Author's summary: When the SGC rescues a goa'uld host, people like Helen Meyer oversee their recovery. Helen's one of the psychologists dedicated to studying goa'uld symbiosis and treating PTSD. After years of research, she finally gets to ask: what happens to the rescued hosts from other planets?
She's not going to like the answer.
E is for Environment