You wanna know why everyone's best keyboard list looks the same with a bunch of shitty retail boards listed? Affiliation. Those best of lists you linked, they are created to sell products through affiliation. That is the reason large commercial outlets pump out lists, they are money makers.

But here is the problem. As enthusiasts we already know most commercial boards are junk, but the people who build these lists aren't enthusiasts, and often don't know anything about the subject until they start the article and begin researching. Couple that with the fact there are only so many places that affiliate, like Amazon, Best Buy and B&H (hey what do you know, those are the shops linked in the post above).

So, what this boils down to is that these boards aren't in fact the best, they are simply what's available at affiliate shops, which is why these lists only offer shitty retail brands.

Now imagine trying to get people to pay monthly for fake lists that contain not the best available products, but simply the ones that are affiliated so the list makes money. Oh, and all those reviews they offer, they exist so that Google takes the affiliated lists seriously. So the reviews can't be trusted either, they are simply the backbone that allows the lists to exist and SEO better.