I'm not sure but I'm going to guess from left to right

Haworthia, kalanchoe, sedum or sedeveria

All need some bright light, brighter than normal indoor comditions. None like to be excessively wet. That's pretty standard succulent plant culture. And everyone will tell you that potting soil is junk. Do a search on here about it. It's a common theme

1. Haworthia cymbiformis.

2. Kalanchoe millottii?