for the first one, if you mean as someone to stay at your home as of right now that's not possible, if you mean for the quest you gotta approch once then go back into the village and up to the backleft where you can find a fruit, then go back to the lizard and Leah will tell you what to do from there.
for the fox Girls the first one with the blond hair is currently not in the game but will be added in the next update which finishes the ketsun village. for the black haired one on the other hand you need to go to a village to the right of the fairy forest, it's only accessible after you finish a portion of chapter 2 though I can't remember if it was before the nursery or the volcano or after those areas, simply go into the first building and pay to stay at the inn and go down from said big building, once you go to rest you'll get a cutscene and then have to find a little girls father, head to the snowy island and talk with the guy outside of brass wall.