I have way too many coffee makers of various types at home. I always seem to end up circling back to electric drip. Fewest actions and least manual intervention of any approach first thing in the morning. (I don't really like Keurig and it's pretty wasteful--and I generally want more than one cup anyway.)

If you can afford it and care about grind quality, there are much quicker grinders out there.

The Baratza Sette 270 grinds with fantastic precision compared to other grinders on the market (even the Vario), and goes through 19g of beans in about 5 seconds.

You can buy ground coffee, if efficiency is your concern.