At the Birmingham NEC this year (2018) there will be an event called Makers Central, showcasing YouTubers from all over the world, with suppliers and vendors from the UK. The weekend event runs over the 5th and 6th of May 2018 and full details of the event can be found here:
Nick Zammeti from NZ Woodturning has organised the event and it looks to be a good one! I'll be there on Saturday as a visitor, so if you spot me, say hello!
Make sure you get your tickets in advance to be sure of getting in. There will be tickets available on the day for a little more (if there's any left!) but pre-book to guarantee you get in to see all the good stuff!