There are a number of different games that can be watched on Twitch, and it really depends on what you are looking for. For example, if you are looking for a game that is easy to follow, then you might want to watch League of Legends. If you are looking for a more competitive game, you might want to watch CS:GO. There are also a number of games that can be watched in a variety of ways, so it really depends on what you are interested in.