Changing game characters when creating a new save

I am trying to implement male and female characters into my game. When you make a new game before the save is created there is a options menu which lets you select male or female and what I want to happen is which ever character is chosen that is the character that will be used in the game.

Save the value that has been choose? Then everytime load just use the save one

I know that I am just trying to make it change when you select either or and then save that, I’m not sure how to do that.

Have a bool or int to check which one has been choose then character set to that one according to the value 0 or 1 then instantiate the model ? And could use a playerprefs to save the value for the reload in the future .Not sure is this how you want it.
If you have more then 1 save then just have to create the number of save slot you need each of them have the value male or female.