Suggestions please - classic Greek origin names

[hettienne]

DS has a classic, Greek origin name - think Alexander, known as Alex.

I am looking for something similar for DC2 - don't know if it will be a boy or girl yet so looking for ideas for both. Something not super-popular/top 10 would be ideal.

Katerina

Nerine/Nerina

Melissa
Hebe
Corinna
Persephone
Cassandra
Jocasta
Medea
Iphigenia
Theadora

Boys:

Castor
Sebastian
Theo

Phoebe - meaning bright, sparkling. My DD1's name, not top 10 but not too unusual either xx

Girls:

Electra
Cressida