there are 2 different kinds of beans, arabica ( shade grown, expensive, yadda yadda yadda )
all the high grade coffee shops sell that ( except in the espresso but that's another thread )
you will have to hunt around the internet to find robusta beans. a lot are grown in vietnam
and indonesia, but still there are some varieties in african and central/south america ...

i have lots of them, and would be happy to sell you some ...