Is there a market for CAD modeling?

Hello! I am new here and do not sell products on Amazon, nor am I advertising anything. I have a more general question. Do sellers of certain products typically make their own models? I’ve seen posts about a tool that generates them, with the feedback being that the renderings are low-quality. If someone were fairly proficient in CAD software, would Amazon sellers take advantage of that service? If so, which category, and any advice? I’m a teenager, apologies for any inaccuracies. Thanks!