AlexParas NeedleArts has stitch guides for Christmas—literally! For the month of November 2018, all their Christmas-themed canvases that have stitch guides included are in one place on their website. If you buy one of these (and don't tarry because there are probably only one of each) you may get 20% off or you can get 10% off and the other 10% will go to their charity of the month, which happens to be the Puppy Up Foundation.
There's a huge range of designers so if you want to stitch something Christmas and would like a guide, check these out. Puppy Up will thank you!