Train a Stable Diffusion model for Cartoon Character

I need to train the Stable Diffusion model for a particular Cartoon Character, by using Dreambooth, embedding, or any other means available. Once the model is trained, I need .ckpt file. Which one I would test to see if the model actually works. By working I mean that I would be able to use it in my PC and inject the character into any form, space, outfit etc. I'm attaching a sample image with the character.