So you need a place for a few months. Renting with Airbnb or Booking is definitely too expensive for such a long period. On the other hand, renting for an entire year with regular real estate agents doesn't make sense since you're not staying that long.
Solution: Introducing Naiss, the place to find gorgeous homes to meet your few months accomodation needs at reasonable prices.
Up to six family members will be able to use this app with Family Sharing enabled.