We reeeaaaaaally struggled with boys names... Both times we only had one name... But hey I guess that's all you need

I would make lists and DH would go through and go "no, no, no, no"

Some of the ones I had were:
Aidan
Rohan/Rowan
Thomas
William
Matthew

And you know what we settled on in the end

ETA - I know a little Harry and he is cute! Might not work with Hamish though!