SoundHound AI may be trading at a premium now, but if it can deliver the growth it expects, it could still be a highly profitable stock pick.Finding under-the-radar artificial intelligence (AI) stocks isn't as easy as it once was, as there is a ton of interest in the sector, and interesting new players don't stay obscure for long. Still, there are plenty of stocks out there that could deliver jaw-dropping returns thanks to their various approaches to AI.One of the ones I'm most excited about is SoundHound A ...