The two trigger words best used in conjunction are: feline_hybrid, furry
You can try different feline animals as additional trigger words. Not all of them work equally well.
I like to use the Lora with a weight of 0.8 - 0.9.
I usually create the images in a resolution of 800x1200 (in this starting resolution the results are most stable) and then scale up to 960x1440 or 1024x1536 px via img2img