So many choices will depend so much on your preferences.
Just search on these boards ' nuru ' or ' body2body nuru london' in google.
My tips - I would go with an Asian girl as have found they do best (but if that is not your preference then ask more questions about the Nuru to make sure she really knows how to do - some just advertise but is really just a body2body massage with oil).
Ask if:
-she has a air bed for nuru or some type of latex nuru sheet to go on the bed (if not then she will not be doing correct
- Ask if she uses real nuru gel (this should be thick and slippy).
Nuru is great feeling and if you are paying a premium for Nuru then that is what should get as they usually cost more than just standard body2body. Some early starting sessions with different masseuses I did not get real Nuru until I started checking first.