Favourite roaster for my standard morning flat white is Leftfield. All their roasts are blends on the medium/dark side, but consistently high quality.
(And... I just looked at their website for the first time in ages and see that they now have a whole bunch of single origins...)
For coffee nerd stuff, I like community coffee and blacklist. Blacklist are a third wave coffee shop, they do a whole heap of single origin roasts and do pourovers, etc, in the cafe.
“The dorsal nerves of the clitoris were omitted from every anatomy textbook I could find. They were omitted from every OB/GYN textbook I could find. They were nowhere described in plastic surgery or OB/GYN literature. They were nowhere considered in literature on female genital cosmetic surgery. Surgeons were operating blind to nerves.”