The Nephilim and the Flood

There is no evidence in the Bible to suggest that the Nephilim, Refaiim, or Anakin were directly related. But they may have had some relations and intertwined lineage. If Goliath was the son of Raffa, he is likely to be descended from the Refaiim. Being brought up in Gath could suggest he may also have had some Anakin relatives. Have archaeologists found any bones of giants when excavating in the Holy Land? There have been reports of that, but I'm not aware of any that have been verified.