Roaches are some of the best feeders hands down.
Once you get a colony going, no more cricket bills,
they don't smell, and are very nutritious. You also have the entire life cycle to choose from, so your chameleons don't get bored.
Some of my favorites are:
Blaptica dubia-
Easy to tell sexes apart, aren't giant sized so all stages can easily be fed to panthers and veileds, can't climb rubbermaid sides. They will also play dead when handled, very docile.
I think they are the best all around feeder.
Eublaberus distanti:
Big FAT tank like roaches, can't climb glass (altho they breed slower than most) They also have very spiny legs which should be removed before feeding.
Blaberus discoidales: Get very large, very fast moving and flighty to attract attention, breed pretty fast. Adults probably
too large for panthers, I feed to my larger chameleons.
Blatta lateralis: Cricket replacement! Same size as crickets,
breed like crazy, can't climb glass, very fast moving, slight smell.. but nothing like cricket stink.
I've kept all of the above for a couple years, and no infestation
yet. However:
I would avoid lobster roaches at all cost! They are very hard to contain, and once they escape they will infest your house
in no time. Also hissing cockroaches have the escape problem,
and they are very large and tough skinned, too big for all but giant chameleons... also high in fat.
You either need to hand feed roaches, or setup feeding bins
with a side they can climb up part way (screen) Roaches are difficult to just toss in the cage because they will hide almost immediately.