Should you get two cats?
Cats can do extremely well in pairs. Many cats need other cats to be happy. Chip and Dip are what people call a bonded pair. That means they need each other to be happy. Many cats need a partner to live there lives with. If you what to get two cats, look into getting a bonded pair. Usually they are ones that will do the best together. Keep in mind that most bonded pairs are both male cats. There are two female bonded pairs out there, but they are rarer. If you want to introduce two cats together, make sure they are okay with other cats. When you adopt or buy a cat, try to get a cat that is okay with the same species, if not then make sure you are absolutely sure that you will not get another cat.
The only big cat that lives in a group is the lion. They are special because they live in prides.
Read my article on how to introduce a cat and dog, it will give you some advice for introducing a cat and a cat.
Something you must do when introducing a cat with another one of is species is make sure you have treats. Feed your cats behind a pet gate or glass door to make sure they can see each other, but not come in contact except to smell each other. Eventually, the cat will associate the other cat with a good thing, food.