There's a list on character profiles and recruitment. Though it's not finished, it does have a fair amount of info on most of the recruitable characters. https://kantopia.wordpress.com/2015/06/22/fire-emblem-fates-importers-source-characters-ongoing/
Having children around really enhances the experience during battles if you imagine the stuff happing in anime version and give more dialogue as you progress through the battles and get along within the story.
I'll avoid story related stuff, but I'll gladly look up info on characters such as stats and the kind of people they are. Though I'll just go for the very basics I guess.
Hoshido first, then gonna wait half a year, then nohr second, then another half year, then the third root, then another half year waiting for the next fire emblem.