Hello - I've been wanting to make Som Tum, but I can't find any markets (Asian or otherwise) that have green papayas... The only one that even had papayas (thought the orange ones) was Nijiya Market in Japantown. Any advice or suggestions would be greatly appreciated! I'm at Hyde and O'Farrell, so I'd prefer staying around the area, but I'm willing to travel a bit if need be. Thanks!