Good places to buy in the UK

I'm new to succulents, after picking up a moss rose that I thought was pretty to go in a tiny pot I had laying around I now have the urge for more.

I have always enjoyed gardening, plants, trees and bonsai but succulents are totally new to me so was looking to hear about any good experiences you have had with online shops or garden centers etc.

I'm in Brighton, East Sussex if thats any help for anyone local to me that's used places like Dobbies that are local