The Matrix says:

For low labor at this level, we can use a drip coffee maker, but we need to maximize two things: beans and grind.

Beans: it’s time to look at fresh, quality, single-origin beans. Coffee beans improve a bit after they are roasted, and then begin to degrade. Best brewing is typically 7-21 days off roast, as long as the beans are stored in a dark, dry place. Beans are best bought from a local roaster, or through reputable online sources.

Grind: freshly ground beans are much more flavorful than pre-ground beans, so the most basic coffee grinder, the spinning blade, will help a lot with flavor, particularly for immersion methods where the grounds and water mix for a long time. To step up our flavor for drip coffee (a so-called “percolation” method), we need to use a burr grinder. Burr grinders do a much better job of ensuring uniformity in the size of the grounds, which is extremely important for percolation methods.

For burr grinders, you can get an electric burr grinder or a hand-grinder. As a general rule, hand-grinders grind much better for the money because you don’t have to pay for the motor.

A cheap digital scale is also a good idea to make sure your ratios are optimal and consistent. You can also consider upgrading your brewer to an SCA-rated machine.