If you're looking for a ZMO alternative, getimg.ai is worth a look. It's a full-featured suite of AI image generation tools, with an AI generator for original images, an image editor, and the ability to train your own AI models with DreamBooth. It can generate high-resolution images and can be used with APIs for other projects.
Another top contender is Freepik. It's an all-in-one creative suite with eight AI tools like an AI image generator, designer and background remover. It also comes with a large library of assets, making it a great option for designers and content creators who need to quickly create high-quality images and videos.
If you're looking for something more geared toward professional headshots and portraits, Try it on AI has a dedicated platform that can generate high-quality images in minutes. It's got Express AI for fast headshot generation and a Creative Studio for custom portraits, and it's good for any industry from media to finance.
Lucidpic is another tool worth considering, especially for generating hyper-realistic images of people that can be used for avatars, stock photos and custom characters. With its AI Photostudio and custom controls, you can generate photorealistic images in no time, and it's good for marketing, design and social media content.