Powering USB hub using fast charger
Provided the fast charger doesn't require some fancy software voodoo to get full power, I don't see why not, I've used USB chargers as power supplies before without issue. USB C is just a connector, it may have the capacity to handle more power, but that's only if the charger agrees and the hub can handle the extra power, at 1A, I'd stick with regular or micro USB - stick with whatever's most convenient.