An AKA membership gets you a year of the Business NewsLetter (BNL) and 6 issues of the Journal of the AKA (JAKA). The BNL is home to the "fish and egg listing" where members send in lists of fish they have available. Most often, eggs will be available, as are fish. Not a lot for sale in the winter, not too many folks like to ship, but there are times when the listings are several pages long and consist of some nice fish.
As stated, aquabid is a source, one with mixed results. In general, feedback doesn't lie. As I said in a previous post, in general, SE Asia has trouble getting good eggs to the US, so I would tend to avoid sellers from that area. Germany is often a good source. My only personal experiences with eggs from overseas were from user Pillet and Corycory. Both sent eggs that were clearly viable when they got to me. The eggs from Pillet hatched out several fry (5 or 6 anyway, out of 20 eggs--a pretty good rate with an annual fish). The eggs from Corycory I distributed around, didn't keep any for myself, but I know at least some of the eggs turned out good fish, and I know all bags had viable eggs, having checked them myself before getting them to their final destinations.
Hope that helps.