I'm no expert but I think it could be a welsummer rooster! Handsome boy indeed! I think another breed that looks similar is a brown leghorn! I dont know the difference between the two but at least you have a name of some possibilities and can look further into it!
Hm, I agree that he could be a Welsummer except that the legs appear to be slate (a little hard to see the photo, though). Probably not a Brown Leghorn as he is not slim enough. So I am not sure on breed either, but he is handsome, you're right about that.