They don't flower for me!!!!!! Only moctezumae and laueana x emarginata do.
The rest are to be taken with several grains of salt
2,3 look like moranensis x ehlersiae hybrids. Maybe something with esseriana?
4,5 look like more moranensis/ ehlersiae hybrids.
6 is esseriana or ehlersiae.
Idk about the rest.
It's weird they don't flower. Do you fertilize? How's the light? How old are they? Peaty media reports s first choice, but if everything else is good and they're mature they really should be flowering for you. They look healthy.
I try dormancy by less light, cooler temps, and almost dry conditions. Only the laueana and laueana x emarginata go dormant. I'm open to suggestions.
the dormancy period in MEXICO corresponds to a dry spell, that's why, as the plants are succulent leaves,to protect and still succeed to live
the wet period in Mexico is between June and October
for me, begins a dormant period, and during the wet period that ends gives them insects (if they are outside they are in charge of themselves), or default, glitter for aquarium fish, but not too much or they will make a indisgestion.
if you respect the cycle I think they will bloom
Last winter I had them all on window sills, dry most of the time, getting the change of light from the outside and getting some coolness from the sills. Most of them still wanted to stay awake.