We run occasional training events for squad players.
A selection of training material and advice is offered on this site for all players.
You can find some of our old training materials on this site and/or at http://exeterchessclub.org.uk -- have a browse through the menu (above or left).
Kent Juniors have some great stuff, from the Institue of Chess, see here:
http://www.kjca.org/site/page?view=training
http://www.instituteofchess.co.uk/
And there is the latest incarnation of the ECF certficate scheme here:
https://www.englishchess.org.uk/training/certificate-of-excellence/