I think that the re-grind process is the secret. It works on all brands of coffee. I use a funnel to brew then.UK based here and I only drink decaf. I'm a big fan of Marks and Spencer's House Decaf. It's ready ground but I grind it espresso fine in my Mazzer Major. It's pure Columbian and delicious and for £3.50 a bag it's a no-brainer. I go through large quantities and it's all I drink these days.
Black Rifle Coffee Company.
Black Rifle
I'll throw another vote in for Black Rifle.
Black Rifle Coffee Company.
They certainly have some very amusing Youtube videos.
Being in Canada, online coffee ordering can be expensive, with shipping usually not free from Canadian sources and always expensive from US sources. Just one of the realities of living in the Great White North.
So I usually just get coffee from Costco and it's good enough.
But one of these days I'll get a BRC t-shirt if nothing else.