Maybe try finding a reference online or in a magazine
I wouldn't be able to draw half of what I draw without them! (Are their faces or their poses giving you trouble?)
You won't be able to find as many guy with guy poses with reference stock, though. You might have to find a couple of images with poses you like and put them together to get the image you want, or change the gender of the subjects though.
(For example, I found a pose I like of a girl that's leaning or drooping like a tangled marionette, and I wanted to add a boy who's slumped on the floor next to her, his strings cut since he's a puppet too. I found a picture of a girl slumped on the floor, and then I drew both of the images next to each other, and made the slumped girl look like a guy.)
Try senshistock, on deviantArt. She has some really good pose references, but I don't know where to go for faces yet...