At times I headcannonize the voices of the Digimon partners, in the case of Lalamon, If she had a voice it could be Cathy Cavadini’s voice.
Also, how do you tink Melissa would nickname her Lalamon?
Hmm I think she could call her ‘Lala’ or 'Flo’, whichever sounds better. Or another option could be 'Rose’ as to make her sound fierce and to reference Rosemon ^^