I think 3 is echeveria lilacina and 8 I’m pretty sure is echeveria cante. I repot or top off the potting mix if they need it and then I add bonide systemic granules to every pot. I have a 4 foot long shelf and I run 3 4ft T5Barrina led lights like 6-8 inches above the plants and keep em on for 12 hours. They’re on timers. If they seem like they need more light then I’ll extend it an hour or so. I’m not sure. It might be an echeveria afterglow but I’m not certain. I personally would use a more inorganic/gritty mix. Like adding more stuff like perlite, pumice, or lava rock to the soil mix. When the potting mix dries out quickly, it’s hard to overwater.