Omni-Zero is an AI portrait transformation platform using zero-shot learning technology. You can upload a photo and transform it into a stylized portrait with lots of control over image fusion and other aspects. It's a general-purpose tool good for mashing faces onto art, generating custom art and even becoming a movie character.
Another option is ChangeFace.ai, which lets you graft your face onto more than 100 famous images, including historical figures and celebrities. It's got a limited free version with eight images and a paid pack with more than 100 images for $7.99, so it's good for some fun or educational projects.
If you want a more full-featured face-swapping tool, check out Reface. It's not just for face swaps, though. It can also animate photos, turn them into cartoons and change styles. Reface offers subscription plans for personal and professional use, so it's a good option for personal fun and professional marketing campaigns.