Hello, I am currently NEW to female bettas

, I have never owned a female, so I am asking for help.
I have a 55 gallon tank, and I will be getting 10 females and some cories and neons, anyways Pet Habitat rarely sells females, unless they are at the bottom shelf, so I am going to look there, if they don't have them, I will be going to King Ed there bettas usually have a very calm personality, instead of putting them in cups both stores put them in bags, so because the bags will be seperate and I will be carrying a LOT of fish.
Anyways, what way do you guys recommend introducing females to the tank, of course least aggressive first, then very aggressive last. Anyways, thank you for the help.

Haha, sorry if my question is a bit weird or stupid, I am just new to the females