Charlaquin
Goblin Queen (She/Her/Hers)
You know, that's almost the full backstory of my gnoll PC I am playing. Except the paladin in the party was the only one against infanticide and fought her party members (and won, though knocked them out), and lost her paladin powers (because, you know, the whole baby orc scenario that was so popular to put paladins into years ago). Raised by the paladin that saved her, became a paladin herself (though paladin of redemption). She's a triple multiclass (one level of barbarian for the rage "skinned" as her demonic heritage manifesting, and fiend warlock levels because Yeenoghu is trying to recorrupt one of his lost children).
As for the 2-year-old OP: There is nothing official for gnoll PC race. Kobold Press has something in their Midgard books. Not sure about anything else. I made my own homebrew version of the gnoll for a PC race for my campaign setting. That's the best choices that you have.
What a freaking awesome character! This is why the whole “Gnolls can NEVER be PCs” thing is stupid. Why rule out the possibility of characters like this, just because gnolls have a demonic origin?