https://civitai.com/models/287869/scribbleray-sdxl?modelVersionId=323759
The ScribbleRay works at a wide variety of levels, but the effect is much more pronounced at higher strengths. We recommend starting at 2, and adjusting as you see fit. Lower strengths can give a very stylized sketch effect, while higher strengths can become very sharp and angular. It is also recommended to use non-photoreal models in this instance for best results.
Be sure to use the trigger word 'ScribbleRay' to activate the lora, and then during your prompt it is recommended (though not required) to use phrases such as 'doodle', 'sketch', and 'black and white' to describe your object.