There have been many good suggestions given so far.
One thing you should understand is that a v-taper shape is dependent on several factors; how small your waist is, your medial delt development, your lat development, and of course your bone structure.
All but the last factor can be improved through training.
So, I would suggest that you work on your shoulder development (for example with lateral raises as was previously suggested), minimizing the circumfrence of your waist, and developing your lats.
As for lat exercises, really any exercise that involves shoulder extension, or shoulder adduction will work the lats.
This would include varieties of chin-ups/pull-ups, rows (except for upright rows as was already stated), and pull-downs. Other good exercises would be rope/rock climbing and gymnastics exercises such as the front lever and iron cross.
If your goal is purely a size issue, I would suggest hitting the lats from as many possible angles as possible. That means don't get locked into the wide grip pull-ups vs. narrow grip pull-ups mindset, or pronated grip bent over rows vs. supinated grip bent over rows. Use them all. The more varying angles you hit your lats from the better your chances of stimulating each and every muscle fiber.
Some other suggestions might be to check out Chad Waterbury's article "Nervous Muscle" for some other ways to make sure you are stimulating all of your motor units.
Good luck and good training,