Too bad, my two favorites
Charis and
Thais are out of the question then ;)
Simon is the Greek form of a Hebrew name. It feels much more Hebrew than Greek to me and I never cared for the sound. I love
Orion, but I guess many people find it too close to Oreos.
Penelope is way too trendy.
Persephone is kind of cool but has one of the most awful meanings a name could possibly have.
Echo is an invitation for endless teasing even though I do like it.
Cleo is nice but kind of trendy.
Iris just doesn't sound nice to me.
Eleni is very mainstream in Greece, I think every other woman in Greece is named
Eleni. I still like it.
Corinna is boring.
Out of yours I'd choose
Orion and
Eleni. Or
Persephone if meanings don't matter to you (I personally couldn't bring myself to bestow a name with the meaning "murder", "destroy" on my baby girl. But I know that meanings don't matter to everyone and I'd like to meet a little
Persephone).
How about:
ThaliaKali (or
Kale, from Greek meaning "beautiful")
AthenaDanaeMelina
For boys I also like
Alexis but it ends in -s. So I'd go with
Orion.