What is the Best Way for Me to Deal with my Dark Circles at 24 Years Old?

I'm male, light/tan skin colour (not tanned however), 24 years old and have been suffering from dark circles since the age of 19. I've tried sleeping more, drinking plenty of water, vitamins, iron-rich diets and none have worked. I'm now seeking non-surgical methods and have come across fillers and laser treatments. My question is, which of these methods are best and what possible side-effects could I encounter with each? And how would I find the right doctor here in the UK (London) to do it?