Most fresh water shrimp have fry, tiny shrimplets. You may wanna check aquabid, or Bobs tropical for juvies. Depends on what variety you are looking for. Ghosties have eggs but the mother carries them until they hatch as larvae, and they are extremely hard to keep as feeding them requires alot of care. Most the other type of shrimps have shrimplets, miniatures of themselves and can feed themselves on algae and food bits.
Give those places a look.