Taking Mattias (too archaic/difficult to say. I'm calling him Matt anyway, so why not Matthew?), Joel (just seems nerdy and weak to me), Jada (too celebrityish; just Jade is better), and Holly (dated).
Boys:
Gavin, Jesse, Jamie, James, Jude, Lachlan, Levi, Rohen, Rowan, Ryan, Scott, Sean, Spencer
Girls:
Alyssa, Ava, Anya, Chloe, Isla, Jade, Jenna