Parents often ask for recommendations of clubs that cater for juniors. Two that have excellent reputations are Petts Wood and Orpington and Charlton. Please see links below to their websites.
Both clubs aim to provide encouragement and support for players of all ability. At the top level a number of their juniors have represented Kent or even England.
Here are some other websites that may be of interest.
https://www.chesskid.com
Kent Junior Chess Association (KJCA) Coaching 