I like [name_f]Calliope[/name_f]. I’d use the nickname [name_f]Callie[/name_f].
As for combos:
[name_f]Calliope[/name_f] [name_f]Estelle[/name_f]
[name_f]Calliope[/name_f] [name_f]Simone[/name_f]
[name_f]Calliope[/name_f] [name_f]Florence[/name_f]
[name_f]Calliope[/name_f] [name_f]Judith[/name_f]
[name_f]Calliope[/name_f] [name_f]Tessa[/name_f]