Some oneshots:

Accidents Will Happen (http://spn-gen.livejournal.com/322823.html) by holli
Summary: Some Goth teenagers accidentally resurrect John Winchester. No, seriously.

At Bay (http://honeylocusttree.livejournal.com/880.html) by honeylocusttree
Summary: Dean Winchester is a functioning schizophrenic. Except when he's not. (AU)

And here are some longer fics:

One Too Many (http://ficwriter1966.livejournal.com/241022.html#cutid1) by ficwriter1966
On his way to Pastor Jim's in Minnesota for Christmas, John Winchester and his two little boys find refuge from a blizzard at the Bonnie Blue Belle dinner with nine other travelers. Two state troopers arrive looking for a murderer. Wonderfully creepy story.

Strange's Country (http://supernaturalfic.livejournal.com/3720763.html) by concernedlily
Summary:
Sam stopped focusing on ways to free Dean from the deal and started looking for ways to get him out of hell two months before he was due to arrive there.

The thing with feathers (http://aesc.livejournal.com/442499.html) by aesc
"Hello, Sam." The angel, Castiel, almost smiles – Sam can see it, just there, at the corner of his mouth, but mostly Castiel just seems puzzled by him. Maybe, to him, a little kid out in the forest is weirder than an angel who lives in a tree. He also seems briefly confused by the hand Sam offers him, but he leans down, canting his wings for balance, and shakes Sam's hand in turn, closing one hand over their clasped ones. His hand feels like a normal human hand, warm and soft.
SPN/My Neighbor Totoro fusion. (I know you said no Angels, but I'm reccing this anyway because it's so awesome.)

Red (http://www.fanfiction.net/s/3169840/1/Red) by exampleusername
Summary: Something evil is killing tree planters in the forests of the Pacific Northwest, possibly the same predator that Dean narrowly escaped years before. How Grimm will things get before the brothers figure it out? Perhaps the most awesome retelling of Little Red Riding Hood ever.

The Wellspring (http://scourgeofeurope.livejournal.com/38445.html) by scourgeofeurope
Summary #2: 2009: In which young Alec is a Manticore escapee and two guys with rock salt-loaded shotguns decide they need a tiny tag-along. Supernatural/Dark Angel crossover.

Harvester of Eyes (http://spn-boc.livejournal.com/6283.html) by gwendolyngrace
Summary: Supernatural / Sandman crossover. John gets wind of a hunt that he doesn’t want the boys anywhere near. But taking them far from danger actually puts them in its path, when they stumble into an open doorway to the Dreaming.

Home is Where Your Story Begins (http://www.fanfiction.net/s/5622474/1/Home_is_Where_Your_Story_Begins) and A House is Not a Home (http://www.fanfiction.net/s/7262537/1/A_House_is_Not_a_Home)by FaithDaria
Summary: God told Joan, "I said your life will be easier. Easier doesn't mean better. I told you two years ago that I was preparing you for battle. That battle won't be easy, but it will be worthwhile. And if you make the convenient choice now, you won't be ready for the hard choices later." Supernatural/Joan of Arcadia crossover.

The Demented!verse Master Post/a> by hells_half_acre
Summary: Harry Potter saves the Winchesters from a Dementor attack, but the Winchesters aren't the only ones that need protecting.
(http://hells-half-acre.livejournal.com/190948.html)