I've just gotten to Melmond and my four White Mages, Maho (Mahou), Brin (Brinlette), Dyli (Dylis) and Nela (Petronella) are only level 12. The best levelup spot I've found so far is the IMAGEs guarding the Falchon chest in Astos' castle, but I've not really looked around for much else.

Anyone got any recommendations?