There are a number of UK clubs.
Edinburgh, Norfolk, London, Birmingham, Nottingham and another in Scotland which might be called the Bothy Club but I'm not certain. All these have meetings but I don't know details for each one. They will have their own websites so check them out. There is also a hint of one beginning in Liverpool near where I live, but I've only heard rumours about this so cannot confirm one way or the other. I've recently become an Associate member of the Pipe Club of London, though I live in the North West of the UK. I recently met up with them near Northampton and had a great day out. The UK also has an annual Pipe Show, this year in July in Nottingham. Hope you can find something to please you. Good luck.