As MAH-rah, I love it. As MAIR-ah, I think it's kind of whiny and ugly. And it reminds me of a mare.
From your list, I love
Mara,
Sarah,
Dara,
Lara, and
Zara (all with an -ahra ending except for
Sarah). Dahra is a right mess and I don't know what to make of Fara, Yara, and Vara, but the others are fine.