Kivu is not bad. Can be found at Fred Meyers and possibly some other places. Out here in the Spokane-Coeur d’Alene corridor, there are several excellent local roasters - Thomas Hammer, Craven’s and Doma. I’d check your nearest burg and see who does roasting. There’s your source.
But.. how do you make your coffee? When I drank drip coffee, I was a dedicated Chemex fan.
Nowadays, I use a Barrista - no longer made, unfortunately - from Starbucks. Delivers a decent shot and is definitely not wasteful of your bean.
I make drip in a 4 cup pot. Sometimes I use a French press which I actually like better, but it’s more of a mess to clean up.