If you ever spot Spam (either in the forums, or received via forum direct message) please use the Report button at the bottom of each post to make sure a Moderator can handle it quickly. Thanks for your help in keeping things running smoothly!
Xbox Series X pre-orders are live! Here's where to buy a new Xbox
Looks like the Microsoft site is the best option at the moment, though you may need to hit refresh a few times to get it to work. Currys / PC World have a queue of roughly an hour... although that may have changed. Amazon have dropped the ball and currently the page won't load. Good luck.