What about these:
I just tried to combine the "sounds" of the two names and find one or two other names. Well, the results are neither Greek or dance-related, but quite exotic! ;-)
Lisa +
Isadora: Lisselotte
Irma +
Isadora: Irmenburg
Anna +
Isadora: Anne-Dorle
Margot +
Isadora: Mardís Dóra
Theresa +
Isadora: Tersia
DoreenErica +
Isadora: Iselin Eriksdotter
Satu