Nodes:SDXL Empty Latent Image. An extension node for ComfyUI that allows you to select a resolution from the pre-defined json files and output a Latent Image.
https://github.com/shingo1228/ComfyUI-SDXL-EmptyLatentImage
git clone https://github.com/shingo1228/ComfyUI-SDXL-EmptyLatentImage
comfy node install ComfyUI-SDXL-EmptyLatentImage