Make your own. So easy, and then you know exactly what's in them. 80% pork shoulder and 20% pork belly gives you the right lean to fat ratio. Then you can play around with flavours and textures. Pork and leek, pork and apple, tomato, Cumberland, Lincoln, with or without mace/sage/pepper/marjoram/nutmeg/ breadcrumbs (absorbs the melted fat when cooked). Up to you!