Reddit mentions: The best espresso machines & coffee makers

From all of my observations of shops coming and going...I'd say start with a couple good quality drip makers, like Bunn. Dead simple to use, clean, and makes great coffee since the machine controls the water temp and volume per batch. Get the airpot systems if you feel you can afford them, if you want a "help yourself" style of coffee, but I really find that the plain old glass and steel carafes can really add to the ambiance of the place.

Next, get those commercial brewers plumbed in with a decent water filter. Huge difference in qualilty and convenience for you as the shop owner, since all you have to do is fill the brew basket and hit start; no worries about whether or not the reservoir is full. It will keep your machines cleaner and running better and longer between cleanings as well.

Since you have your awesome setup now, you can look at coffees. I'd just start simple, something a grade or two better than your basic Folgers or what have you. Something single-sourced, organic, fair-trade, etc. Like hamhead said, don't go nuts, but do be creative. And ask, always ask if the customers liked it or not, or what they would like to see you offer. Feedback is crucial.

Now, I know I've probably tl;dr'd you here, but I do have a point. If you're running a bakery, you need to be focused on making the best bakery possible for selling bakery goods--not coffee. This set up should help give you a high-quality product that's easy to sell along with your baked goods, giving you a good ROI and not break your bank in the process; nor should it require a large investment of your time (focus on the bakery stuff, remember?) trying to make fancy coffee. Just like in kung fu, you must master the basics before moving on to the falcon punch stuff. And, IMHO, finding a place where you can get a consistently good basic 'cup of joe' is like finding the Grail. A ceramic Grail filled with heavenly coffee.

Assuming you're just looking to make coffee, this will serve your needs quite well. If you want to experiment with espressos and such, u/ash663's recommendation is quite good.

They should probably update that, they've been available for sale for a while now. $7k for a two-head system, or apparently less if you buy from Amazon.