If you're looking for a replacement for ImagetoCartoon, PFP.AI is another good option. It can generate profile pictures based on your own photos, with more than 357 styles available from realistic to cartoon. The service can generate high-resolution images in 4K and deletes photos and models from its servers after 7 days for privacy.
Another option is ImagineMe, which uses private AI models trained on images you upload to generate beautiful images based on text prompts. It has a range of styles, including AI avatars and cartoon transformations. You can use prompts to retrieve the generated models, and subsequent generations are only 10 seconds.
If you want a more general-purpose avatar generation system, check out Posed AI. The service lets you generate more than 100 custom avatars from a variety of styles by uploading 10-20 photos that capture your face and body. It can generate 4K images, and it deletes your photos after training and stores the model for 15 days for privacy.
Last, Ready Player Me is a full-on end-to-end avatar creation service for developers. It's got thousands of options that can be customized, can be easily integrated with popular game engines, and has tools to monetize hero avatars and skins. It's geared for social experiences and virtual meeting platforms.