Aha, it seems I cannot stop when speaking of him. As for Fairy Tail Gray Fullbuster cosplay, obviously, it is one of the simplest ideas for boys, because he is always topless. Gray has short spiky black (blue) hair and blue eyes, and his body is toned and muscular. As for his anime costumes, they are all in the style of white coat if he is wearing clothes.
If you have muscular build and want to do easy but well-known anime cosplay, Fairy Tail Gray Fullbuster is really a good idea.