As part of the 'A Different Hat' spring challenge, I thought I'd try and recommend one AU or uber a day... although, considering my atrocious memory for titles, that might be a bit of a pipe-dream, but fortunately I just re-read one of those I was planning to rec so I even have a live link.
There's Nothing Catchy 'Bout The Life Of A Saint by
gilligankaneGlee - Rachel/Quinn & Santana/Brittany
Quinn is a new transfer to William McKinley High School who almost immediately strikes up an antagonism with one Rachel Berry, while simultaneously trying to avoid Finn, Sue Sylvester and the label of delinquent. There are so many things to love about this story, not least of which is its portrayal of Santana and Brittany - I fell in love with this pairing and these characters reading this story - and the freedom it gives Quinn outside of the labels of cheerleader and pregnant-teen. I would highly recommend it.