Sinocrassula yunnanensis

Here's some care tips: Pot into a tight fitting pot, with just about half an inch to an inch from the plant and pot rim. Use well draining soil, I suggest 50/50 cactus and succulent soil and perlite. You can subsitute the perlite with pumice. You could also use chicken grit, mixed with perlite or pumice. Make sure your pot has a drainage hole, I prefer terracotta pots. Water whenever you feel the plant is thirsty, not on a schedule. Keep in mind succulents don't like a lot of water or they will rot, so probably every 10 days. Put in very bright sun, it will seemingly get taller with the leaves having more space in between if it is not getting proper light. I recommend outside. Usually windows don't have strong enough light. Enjoy your plant:)

Do the pots have drainage holes? If not, you need to take the plant out and replant in pots that have them or add them to this pot. Also regular potting soil often holds too much water for this type of succulent to remain healthy, so they will do best in a cactus mix or other sharply draining soil.

Again -etiolated, as most of your plants you posted. They need better sunlight. And better mix and containers with drainage holes. This one is trailing and could be better if potted into hanging basket. Most likely Sedum burrito or Sedum morganianum (closely related)