I loved the 'yellow devils tongue' for flavor and productivity.
Red bhut jolokia - ghost- is good and people like because t's name is so reconizable . Trinidad douglah is another great tasting pepper--that is if you eat the extremes. Those three were my favorite yellow, red, and brown.

I also grew Carolina reaper, butch t, naga, the 7 pod/pot series, chocolate habs, and a bunch more.
Not so hot but really like is hot Tobago, and Inca red drop ..very unique flavors