There are a lot of nice LoRA nets about this amazing anime, but I still wanted to try making one. I took data from all the movies and the first season.
Should work fine at around weight 1 on AnyLoRA ckpt and AAM. Use violet evergarden to increase fidelity. If somehow you don't get flat colors on new concepts or lora combinations, use AAM.
Remember this is a style LoRA. To make characters accurately you need other networks too (but it can get pretty close with accurate descriptions).