Four is awfully old to be changing a kid's name.
My mother's name was changed when she was only two and a half, and it was hard enough then. She remembers it as being a very confusing time. I think changing
Cora's name would be confusing for her and for your other children. What if you left her name as
Cora and called her
Cori? Or you could expand
CoCo to Coconut to get diminish it's similarity to
JoJo. If you feel you must change
Cora, I'd go with
Coral. The extra l sound should take care of the similarity with
Kiara, and it's much more similar to her original name than
Tori is, imo.
Of course, all of this is just my opinion, and you know your children so the final decision is up to you and I'm sure you'll make one that's right for them!
Edited to add you could also change it to
Corinne, if you decided to change it.
This message was edited 11/9/2007, 6:51 AM