I am a Master student of math in the UK, and I would like to do a PhD in number theory, preferably the algebraic side of it. Given that I am in the UK, I would probably prefer staying here or going to the Continental Europe. I was thus wondering if anyone recommends any good PhD programs in Europe that are good at number theory. Thanks!

(There is a similar question on MO, What are some of the math departments in US and Canada that has good research programs in Number Theory, but it has zero answer and is focused on North America.)