If you’re on your computer for school or work, you want a good keyboard. If you do a lot of PC gaming, you want a good keyboard. If you just like keyboards, you—wait for it—also want a good keyboard. And odds are pretty good that you’d also like a good deal on one. I’ve scoured the web for the selling smorgasbord that is Amazon Prime Day, and found the best keyboard deals around. As PCWorld’s resident keyboard nut and reviewer of dozens of models over the last three years, I’m not just suggesting the best discounts. I’m really suggesting the best keyboards that I’d actually buy for myself. And…