This was the original objective of my collection, had to lower my expectations a bit after selling off all my lasers a few years ago. Gradually getting there again though. Below are all the wavelengths I could find in production pens. Not including engineering samples, experimental diodes, or limited/rare stuff. Only visible wavelengths. Not including wavelengths that are within the margin of error of another. (ie "445" could be 447, 444, etc...)
*Apparently exists, only one on the list I have yet to see anyone one the forum with.
Thank youIn addition to those already listed:
And lots of other red/IR wavelengths that I don't remember off the top of my head. For some reason there are far more diode choices on the longer side of the spectrum. Most of them are quite cheap, as well
Also note that diodes have a lot of variation. Those marked 445nm or 450nm might be anywhere from 435nm to 460nm. And it makes a lot of difference, color-wise.