Noah and Ezra are quite gentle-sounding as far as boys' names go so, if I were you, I'd be tempted to go with a very girly name for a daughter. I'd be thinking of names like:
Noah, Ezra & Lucy
Noah, Ezra & Cecily
Noah, Ezra & Phoebe
Noah, Ezra & Alice
Noah, Ezra & Rose
Noah, Ezra & Emily
Noah, Ezra & Zoe
Noah, Ezra & Sophie
Noah, Ezra & Elodie
Noah, Ezra & Hazel
Noah, Ezra & Holly
Noah, Ezra & Mabel
Noah, Ezra & Isabel
Noah, Ezra & Harriet
Noah, Ezra & Florence
Noah, Ezra & Pearl
Noah, Ezra & Beatrice
Noah, Ezra & Juliet
Noah, Ezra & Hope
Noah, Ezra & Felicity
Noah, Ezra & Verity
Noah, Ezra & Violet
Noah, Ezra & Adelaide
Noah, Ezra & Charlotte
Noah, Ezra & Rachel
Noah, Ezra & Miriam
I would avoid a name ending in an 'ah' sound.