What colleges are good for becoming a veterinarian?

You have to attend an accredited college of veterinary medicine or school of veterinary medicine.

In the United States there are 28 accredited colleges of veterinary medicine spread throughout the country. In addition, in North America there are five colleges of veterinary medicine in Canada, at least one in Mexico and several in the Carribean. For a list of these colleges, you can check out the American Veterinary Medical Association's website at www dot avma dot org.

Around the world, most countries have at least one college of veterinary medicine, and there are regional and continental organizations of veterinary medicine that will help you find the nearest one - I'm not as familiar with these, but a quick internet search will bring up the organizations.