Dune makes me think of sand dunes or the sci-fi book. I don't find it particularly masculine either, maybe because it is close to
June or the naturey vibe.
Boone has a bit more appeal because it has some history of use as a name/surname.
Boone
AlexanderBoone
EmmanuelBoone
GregoryBoone
Isaac /
IsaiahBoone
IsraelBoone
JasperBoone
JonathanBoone
LysanderBoone
PatrickBoone
RaffertyBoone
SawyerBoone
SchuylerBoone
StewartBoone
ThaddeusBoone
VictorBoone
Zachariah