The only new datasets being made are for characters, and someone will only spend the time creating it for a character with enough demand. And even if they do have enough demand, they want 'normal' looking art
If you don't want to have your art stolen to be used in an AI image dataset, the best way to do that is to make art of obscure characters in really strange styles.
You'll also occasionally see these programs advertise that they can completely destroy any dataset trained on their images, even with just one image. Which is also untrue. One image won't destroy an entire dataset no matter how big or small that dataset is
Either they make your art look like someone smeared vaseline all over it, or they do nothing. I highly encourage you to try and learn how this stuff actually works so you can be informed on these topics
Btw, I'm seeing this topic get bought up on twitter again so I'll just say it here - those programs that claim to stop ai image generation from using your images in their dataset? They don't work.
just finished my second biography on unknown and unimportant early 20th century australian authors for a history project