DALL-E 2
DALL-E is one of the most popular tools for creating realistic images from scratch. All you have to do is describe what you want to see, and DALL-E will create it for you.
ai tools for designers
Inworld
Inworld: It is an AI that will allow you to create virtual characters just by explaining what you want them to be like. You will create a character with their behavior, motivations and goals.
Lensa
Lensa: One of the most famous mobile applications to create avatars with your photos using its Magic Avatars. It is paid, but for a few euros and by sending a few reference selfies it will offer you the possibility of creating several avatars with different styles.
Lexica
Lexica: It is a search engine for images generated with Stable Diffusion, and it also has an option to generate them. Very good resource when you are looking for images already created with a kind of Google of AI images.