Clubs & Societies in London
London is home to a great many club & societies, some dating back for hundreds of years. You can pretty much bet that if you are interested in something then there are others looking to get together and share that interest.
One major problem you might face is that London is such a huge city (over 600 square miles in area) that it might be harder to meet in person then you would like.
Romanians in London & Bulgarians in London online social groups