Have you tried the
Association Pet Dog Trainers website? Usually worth a look and I'd recommend going to an APDT accredited trainer
This is another site of Dog Clubs - see Lichfield & Distict Dog Training
I can highly recommend Patria McConnell's book The Puppy Primer to tide you over whilst you find a class. She's an excellent trainer and the books are well written and easy to follow. Her
website is a good place to do some additional background reading too
He will grow out of biting, eventuallly, but there are techniques which will help you both.
The Bite Stops Here by Ian Dunbar is a very useful read. Also if you can flatten your hands onto your thighs or clench them into fists you make it harder, and less satisfying, for Cooper to wrap his chops around them for fun. Also opt for skinny jeans over bootleg or flares!! :)