Learn the Ropes by Mercurie Seven of Nine pays a price for everything she learns. Prompt: "Free advice is seldom cheap."
Seven Into One by AlaraJRogers Seven of Nine's first day aboard Voyager.
The Illusion of Normality by Nethdugan It takes a while, and much research, but Seven of Nine comes to realise after being freed from the Borg that no, you don't have to be either sexual or somehow deficient. That she isn't deficient.