Fight Club- The obvious by-product of a dysfuntional childhood and lack of a parental influence. "Our fathers were our models for God. If our fathers bailed..."
Lullaby- Oyster literally calling them 'Mom and Dad' and the narrator liking the idea of it.
Diary- The in-law angle. That ever so stereotypical yet painful interaction between her and the mother-in-law magnified by the guilt of her husband being in the coma leaving her to deal with Grace, alone.
Choke- Largely revolving around him visiting and taking care of his mother. And the convoluted storyline of his conception relating to Jesus.
Survivor- The cult. Like Fight Club, shows the complete lack of parental influence. Although throwing in the ongoing involvement of the brother makes the appearance of a 'family situation' plausible.
Invisible Monsters- The parents are tied in here and there and, as with Survivor, it ties in the family feel with the constant involvement of a sibling.
Rant- Won't say much about this. But if you've read it: you already know.
Haunted- Not a strong pull in the parental direction but very much of a lineage. I felt Mr. Whittier was the grandfather figure to everyone and the group, as time went on, formed somewhat of an extended family.
Snuff- Well, you know. And if you don't, go read it.
It's been a while since I've read some of these so forgive me if some of the details are skewed or missing but it's as I remember it.