Yes, my Hermosillo Dwarf is also from SLP. I have such plans for it!
I can think of many accessions which are domesticated for sure... the databases are chock full of stuff collected from markets, or of pod types which could only result from many generations of effort. For instance, the habanero I have such hopes for, Habanero Oxkutzcabense was introduced to the seed trade as
PI 438629, collected in 1979 from the famous citrus market in Oxkutzcab, Yucatán.
My understanding is that anything with a pod much larger or farther from round than a pequin is extremely likely to be domesticated, which doesn’t preclude being naturalized following domestication. I believe that pequins themselves are considered to be a domestication step just beyond the smaller, rounder chiltepin. They are what you get as you begin to select for larger chiltepin pods.
In general, large pods, non-red pods, pendant pods, and pods which don’t readily detach are signs of active human selection, since they are passively selected against in nature.
At least, that’s what I’ve read.