I love Trader Joe's coffee cans for their balance of quality, price, sustainability (shade grown and organic) and fair trade. I'm not a connoisseur though... good enough for me and less guilty than buying gourmet coffees that just focus on taste over everything else.
Check out Azucar Loca Coffee - <a href="https://azucarloca.com" rel="nofollow noreferrer">https://azucarloca.com</a>
Their espresso blend Ayyy Papi is amazing and they have Cafe Cubano which tastes even better than Cuban Coffee.
Grocery store generic beans are fine and cheap. Don't notice a difference between those and the ones that cost 2-3x. However, I'm no connoisseur. Just avoid ground coffee like the plague.