If you want to play Euromillions and increase your odds, a lottery syndicate is the best way to do just that. By pooling your ticket with 49 other players, your odds of winning something is multiplied by 50, for a price a tad higher than buying your own ticket in the shop.
I've played with the below syndicate and have won something on every single draw, albeit small prizes so far.
You also have the benefit of the British Euromillion draw that gives away 1 million pounds during each draw to a ticket sold in the UK. In fact, each draw gives you 50 changes to get that lucky ticket and share it between 50, which gives you 20.000£ in such a case. Gladly welcome.