Another good option is ImagetoCartoon, which offers both 2D and 3D cartoonization of photos you upload. It doesn't need any manual input, and it offers a range of cartoonization options and themes, like business and superhero. The service can be used for social media and personal branding, and it doesn't keep the images you upload, so it's private.
If you want a more general-purpose content creation tool, check out Reface. The service not only turns photos into cartoons but also lets you swap faces, turn photos into animations and change styles. It's designed to make AI useful for personal amusement and professional marketing, and it offers a range of subscription plans depending on your needs.