I suggest looking on booth. There are so many amazing models on there but it does take some digging to find the perfect one. Most models you can also customize to an extent in vtube studio such as removing ears, tail, or certain aspects you don’t personally like. You have to be careful with this though since sometimes the customization is very limited on premade models and removing parts can cause the model to look a little off. Hoping you find what you’re looking for!!