To find a good employment solicitor in London, start by checking the Law Society's directory, which lists solicitors by area and specialism. You can also seek recommendations from friends or colleagues who have had similar legal issues. Look for solicitors with experience in employment law and relevant qualifications. It's a good idea to schedule an initial consultation to discuss your case and gauge their expertise. Finally, ensure they are regulated by the Solicitors Regulation Authority (SRA) for reliable service.