I am in the market for some new USB Type-C cables and I am aware that not all of them follow the correct specification and can damage whatever is plugged in to them. Google engineer Benson Leung has done a lot of work (and fried some devices!) testing USB Type-C cables and reviewing them on Amazon.com. I’ve attempted to find the equivalent products on Amazon.co.uk and have listed them here alongside the relevant review.
Thank you to Benson for doing the research!

NOTE Please do your own research and make sure you are happy with any USB type C cables and adapters you use with your equipment, this list is provided to aid research rather than to provide any guarantees of safety.

Affiliate links are used throughout.

* Prices updated on 5/10/17, some items currently unavailable, I’ve left them in the list in case they come back into stock. Check the Amazon widget for the current price.

Update I ended up buying a pack of the Orzly Cables (4 cables for £14.99 in funky colours) and the Anker adapters and I’ve been very pleased with both. All going strong nearly a year later.

Item Type Review Price* Amazon
OKPOW Hi-speed Gold Plated Nylon Braided USB Type C to Type A Cable Review £5.99  
Anker USB-C to Micro USB Adapter 2 pack Adapter Review £5.99
StarTech 1 m USB-C to USB-A Cable Cable Review £8.48
USB C Cable, VCE® (3.3FT) USB C to USB 3.0 Cable Cable Review Currently Unavailable
Coolreall USB-C to Micro USB Adapter 2-pack Adapter Review £7.99
GearIt USB Type C Cable Cable Review £4.82
BlitzWolf Braided USB Type C Cable Cable Review £7.69
Boot Remedy Fast Charge USB 3.1 Type C to USB 3.0 Type A Male Cable Cable Review £6.99
Tronsmart USB C to Micro USB Adapter 2 pack Adapter Review £5.99
Pushingbest MicroUSB adapter Adapter Review £6.99
Xiaomi Original USB Type C Adapter Adapter Review Currently Unavailable
AUKEY USB C Cable to USB 3.0 Cable Review Currently Unavailable
Anker USB-C to USB 2.0 Cable Cable Review £5.99
NXET Type-C Charge Dock Dock Review £13.99
Tronsmart USB-C to USB-A Cable Cable Review Currently Unavailable
CHOETECH USB C Cable Cable Review £3.97
Orzly® – New Certified USB 3.0 (Multi-Colour Pack) of USB-C to USB-A Male Data & Charging Cable Cable Review £14.99
Vinsic® USB Type C Car Charger Adapter Car Charger Review Currently Unavailable
Spigen C10C0 USB Type C to USB 3.0 Cable Cable Review £12.99
Cable Matters USB Type C (USB-C) to Type A (USB-A) Cable Cable Review £5.99
Tronsmart USB Type C Car Charger 33W Dual USB Car Charger Car Charger Review £11.99
FRiEQ Hi-speed USB 3.1 Type C Cable Cable Review Currently Unavailable
Anker USB-C to USB 3.0 Cable Cable Review £5.99