Best option for character consistency and composition for children's books

I want to write children's books and use AI to help illustrate them. The books would be primarily for my own kid although if they're good enough, I might consider publishing them. How I imagine my offline workflow is: Hand-draw the characters, so they' are all unique, although I'd use AI to spruce them up, since my artistic skills just aren't up to snuff. Therefore, I'd need an I2I to take my drawings and then fine-tune the characters and apply a style.