Most forgiving brewing method?

My significant other doesn’t care nearly as much about coffee as I do, so we always have pre-ground supermarket coffee at home. Tastewise, it’s usually rather dull and bitter because apparently, that‘s what people expect coffee to taste like around here.

I wonder if there is a method/recipe that can compensate for those flaws. The Aeropress is pretty versatile, so going for lower temperatures and/or shorter extraction times comes to me as a natural first step in this investigation. Doing a pour over with this stuff feels like I‘m wasting precious V60 filter papers though tbh 😄

Any further suggestions? I own a V60, an Aeropress, a cheap drip coffee machine and the (in-) famous IKEA french press. My kettle only allows for adjustments in 10°C steps, but features a temperature display, so I can go reasonably precise on that end.

Cheers! ✌️