I like Aria a lot, and Arena is very nice too. A girl off Mastechef shares that name, and my first though was 'isn't that a gym complex?' but I actually think its a really nice name now. Its different but now too far from the 'regular'.
Similar names i've come across incluse Aurora (Sleeping Beauty's real name), Auriyah (sounds like Orr-eye-ahhh) and Aurelia (all girl names).