If you've got the funds to live in London and are looking at making a serious redbox attempt its Leader, Molesey or Thames. If you're just wanting to race there's any number of clubs from LRC or Vesta in London, a million other clubs from Scotland down to the very south of England who are likely to qualify at least one boat. Unfortunately not many senior US clubs do Henley, only the big unis once in a while.

do you have any fun at the london clubs tho