Which type do you want - Alabama, Texas, Florida, maybe there are others I've forgotten too. There's a black mouth cur dog website www.blackmouthcur.com you can check breeder listings.
Good luck! We just had a litter in September but they've all left now. You may need to ship one, most breeders are in the south and southwest. Where they come from usually defines what 'kind' they are too; those in the SW are typically cow or hog dogs, the ones in the deep south are often hunting/treeing dogs.
Our neighbors just had a litter. They were trying to find homes for them all about a month or so ago. Not sure if they found homes for them all or not. If you PM me your contact info, I can stop and ask.