Ignatius is mns, it's a bit too elaborate for my tastes (and i usually love elaborate names). But it's not bad, it's just ok for me. Out of your lists, i love
Isidore (just wonderful!).
Caspian is nice too.
Some names you may like:
CassiusCasimirLuciusCiceroBenjaminDashiellViggoAtticusAntonyEvanderBeauregardLeopoldWilhelm
OctaviaLucretiaValentinaClementineFlorenceHermioneValenciaLysandraAnastasiaAdelaideLeonore