House buying - Solicitor recommendation

Not sure this is the correct area for posting, so I apologise in advance.

I am looking to purchase a property and need some recommendation, I live in south east london (SE5 7HL) and therefore need a good solicitor in this field. I prefer a local firm incase I need to go to their office to sign paper work etc.

What is a best way to find a reputable firm.

Thanks,