Not sure if giving information about Nepali families around there would work for you.... But, I assume there must be many. Why not you visit some Nepali restaurants like Tara's Himalayan Cuisine in LA or the one in Ventura. You may also find Nepali families visiting to local Hindu temples. Or, contact America Nepali Society of Southern California or Friends of Nepal in LA or Nepali Ekata Samaj, etc. by contacting any executive members for more info.... Teej and Dashain events are also good to meet with Nepalese around the area....