Boy Names— Number 3, and at a total loss.

My husband and I are having baby boy number 3! It’s his first bio (other two are from a previous marriage) and we are very excited, however we both thought we were having a girl. Here we are now and have no ideas on names. We have looked at books, forums and a million other things. The only one we don’t hate is Gabriel. But we just don’t know. We have a Mason Scott and Maddox Beckham, his name is Joshua but he goes by his middle name, Dyllan. Does anyone have any amazing ideas?! It is KILLING ME.