Buy over Aquabid, get them sent from Thailand.

I've bought from Nicebettas, Duenbetta, Grandbetta and Kimjawbettas. These have been around quite some time and have had good dealings with them. I think Wasanbetta is another established seller who sells giants from time to time. Which seller to buy from is up to you. From experience the sellers I bought from were nice to deal with. However, a word of caution when buying online. Because of the delivery system of Poslaju, there is 50% chance the fish arrive dead I believe. Not the seller fault but postal service fault.

Btw, the giants I managed to breed are not normal fighter colour or red or pineapple or marble, rather they are full masked giant plakats, which still seem uncommon for sale. The fries came out half masked and full masked, but funnily eventhough parents never showed it, they seemed to develop HMPK and double tail finnage(I left for UK when they were 2 months old, half developed) So I am hoping to continue to work on this line furthur.