As stated above there are 6 and 7 stripe variations of frontosa.
There are many different variants of the 6 stripe.
The burundi, the most common and least expensive of all
devolops a huge "tumor" on there head. There is also
"bismarck"
"moba"
"kapampa"
"burundi" as stated above
"mpimbwe"
and many others. The difference is usually in the mask, or face region.
There are new variations still being caught in the lake and will
be named according usually to there collection spot. Some have biggers spawns,
and are easier to spawn. The Burundi, being the most common is the easiest
to spawn and usually have the largest spawns.
I personally have a small group of f1 (offspring of wildcaught) mpimbwe and love them.
Hope you find one you like.