SDXL can be combined with any SD 1.5 model : r/StableDiffusion
First Model || Photorealistic HDR || 768 x SD 1.5 BASE || No mixing of existing model used || Fresh faces || Example Cards || Any interest from the community for public release? : r/StableDiffusion
Porcellana(SD 1.5) - AIEasyPic
Scaling Down for Speed: Introducing SD-Small and SD-Tiny Stable Diffusion Models