I can't think of many and the ones I can have probably already been suggested, but at the risk of repetition I'll share them anyway. :-)
Vera (the obvious one)
Rena Renie (RAY-nee or REE-nie; my mother knew an
Irene nn REE-nie)
VreniVena (I'd say VEE-na, because VAY-na is too close to vein for my liking)
Veva (cute, I think)
RenReva (if you don't mind going a bit backwards!)
VereVerushaRaeRea or
Rhea