I would suggest taking a look at 6mm, mainly as armies can look very good on mass, they are also very quick to paint.
Baccus are my go to guys for 6mm but know there are a few other manufacturers out there, they just don't compare in my mind. However if you end up using any phalangites go for the open handed versions and use dress makers pins.
https://www.baccus6mm.com/