Since
Sacha is a French form of a Russian name, they could try those nationalities. Some French names that I like are
AurelieCamilleMarieLilane
Of course, there's Russian too. But most names probably wouldn't work...
Svetlana,
Anya (too close to
Anna),
Olya, etc.
My sister, Christia, has a Russian name, but when she was living in Russia before we adopted her, her name was Liliya (LEE-lee-ya).
My other adopted sister's Russian name was
Marina, but now her name is Marisha, which is a pet form of that along with Marishka.
For some reason I think
Alexandra could work too. (
Sacha and
Alex?) But that's just me, so tell them good luck for me!
--
Kit