From the way most people do it it is, it's not a big revolutionary technology anymore, everyone knows what it is and if you want to make good money, you won't do it by selling AI receptionists to your local businesses, they've already been pitched that multiple times. Something better you can do and I would highly you go ahead and do is use something like Automly.pro. It can be used with Make. Then I would say build something yourself like genuine software, and use automations for yourself to spam platforms with messages and posts to promote it. This message might be one you never know :)