sometimes it helps to wait till you see the personality of the pup. Some of our male dogs have been named, Cody, Bob, Tag, Wilson, Teddy, Critter, Murphy, Lucas, Skipper, Max, Zeppy, Charlie, Royce, there are more but that's a start. And no we are not hoarders. These dogs were all loved and most died of old age.
Tend to agree about waiting to name after getting pup, sometimes wanted name doesn't fit. We adopted kitten, came with name Peridot, immediately changed to MAX (often Mad Max). Peridot just didn't fit his personality.
Otherwise , considering the personality of other golden retrievers I've met, you might consider Happy as a name.