Nvidia may seem like the de facto choice for AI investors these days, but it's not the only option. Few stocks are associated with artificial intelligence (AI) the way Nvidia is. The company has a dominant market share with the GPUs that power the AI industry. And if the AI market takes off as much as expected over the long term, it's hard not to see Nvidia as a major winner. But there's a problem: Nvidia's market cap is already approaching $3 trillion. There may be plenty of growth ahead, but the company i ...