Great question! I see that your username has Spanish in it, so if you know a foreign language my best tip for you is to choose an AI that you like from There's An AI For That and build the equivalent in that language. There is a total lack of non-English AI tools and most of the demand is international.

Next best tip is to pick a super simple language generation use case (like "excuses generator") and fine-tune GPT-3 on 100 good examples on it. Most people are not bothering to fine-tune but it makes all the difference. Remember the Linkedin viral post generator? Something like that. You can use a free SEO tool like Ubersuggest to find niche ideas, and this way you'll keep getting SEO traffic once the initial buzz is over (I don't think search engines and SEO will die anytime soon).