5.) Sea art AI

One of the best free AI image generator tool. You can use right now. Sea art has free version and pro version too.

4.) Canva AI 

Canva is free online image editing tool. It also provides lots of AI tools that includes Image generator too. 

3.) Mircrosoft AI 

Mircrosoft is leading tech giant in AI field. It also provides lots of free AI tools. You must try this image generator tool. 

2.) Pixlr

Same as canva Pixlr is also online image editing tool. It also provides free ai tool. That can generate cool ai image for yourself. 

1) Leonardo AI

Leonardo AI is my personal favorite Image generator tool.  It has various trained models which will help you to generate realistic images.