Clockwise starting at 9 o'clock, Gasteria or Gasteraloe, possibly 'Green Ice', 12 noon I forget, 3 o'clock is Aloe hybrid possibly 'Delta Lights' or 'White Fox', 6 o'clock is something like Gaptopetalum paraguayense, or a Graptopetalum/Echeveria hybrid, probably the former.

Of these plants, all are low-water plants that cannot take temperatures much below 32F; Gasteria/Gasteraloe is more of a shade plant while the others are more in the morning-sun/afternoon shade range for care. Indoors as much bright indirect light as possible year round for all of them; if the growth starts to stretch out you need to provide more light.

Make sure the mix they are planted in is gritty and free-draining. Often these things come planted in something like straight peat which is going to make them rot. Mist lightly on a regular basis to prevent spider mite infestations, Water maybe one every couple of weeks, watch and treat for mealybugs aggresively.