It depends on what kind of names you like. Do you prefer uncommon names for
Isis? Or common names for
Isis since
Isis itself is not common (though it is starting to become common in the US).
I think it is important to use a middle name that helps balancing out the name
Isis.
Isis BellonaIsis Caitlin Isis CallistaIsis Carmela Isis Charlotte Isis ChandraIsis Dorothy Isis Fabiana Isis FarrahIsis Helen/Isis
HelenaIsis Jamesina Isis Kezia/
Isis KeziahIsis Lenora Isis Nadine Isis Valentina Isis Winona Isis Yolanda