Asian pottery is one of the most enjoyable things to collect and display. From the Tang dynasty to newer pieces from Vietnam, there is something for everyone. The Gift show in Los Angeles once a year used to be a good source for Asian Art, but in recent years only 2 or 3 vendors still attend.
Art galleries can be a good source. Leave your info with gallery owners in hopes of them remembering you if/when they come across something.
High end estate sales in Palm Desert, Rancho Mirage, Indian Wells, Newport Beach, Corona Del Mar, Beverly Hills, and Los Angles areas are an excellent source for Asian art too. Again, make friends with the people who are exposed to art and art collectors, and keep in touch. Jalan Imports in Topanga Canyon has a nice selection of Asian pieces for garden but for the fine collector grade pieces, it’s gonna take some leg work.