I don't think that you need to go any yoga center, you can do it at your home by watching videos online.
The best yoga center in London is
Barbican Yoga cave because they have the best instructors who have years of
experience and give the right guidance.
Go to a center if you wish. All you need you already have.
Go to a library or Google Yoga for info.
At my home every day.
I do a 13 minute routine in the morning,
8 minutes when I get home from the office,
and 5 minutes before bed. I've been told I look half
my age. I can do things most 20 year olds can't.
I have learned how to reverse my center of gravity and,
increase my genetic deck. Yoga for life. But only if
you want to live longer.