[name_f]Hero[/name_f]
[name_m]Cato[/name_m] (more commonly masculine but I’ve heard it as a diminutive of [name_f]Catharine[/name_f])
Io
[name_f]Margo[/name_f]
[name_m]Rio[/name_m]
[name_f]Brizo[/name_f]
[name_f]Xantho[/name_f] (though [name_f]Xanthe[/name_f] feels unusual enough without adding a quirky O ending!)
[name_f]Sappho[/name_f]
Good luck!