Handsome is my favorite, I call both my boys that all the time! Im surprised they don't answer to it!
I just have to pluralize any nicknames so it encompasses both of them!
I also call them
babes
mommaswittlebabyboys
furbutts
punks
brats
my jelly beans haha (i cannot believe im sharing this! haha)
greatestwuvsofmylife
silly boys
goobers
there are probably more, but thats all I can think of right now