Society Central

Morning - have a family of 8-9 headed to San Sebastian at end of June, and realizing hotels will not work for them (most only can fit 2 people per room, most have 2 twins or a queen or a king, etc.). Another family of 12 is headed to Switzerland 12/26 for a week, so need to find a place by Gridelwald or Zermatt for them (or another location/centrally located for skiing, sledding, etc.) What resources do we have to keep this in house, and earn commissions, vs their AirBnB ing? Thanks!