Various, including: red log plant, apple blossom geranium (really a pelargonium), succulents - kalanchoe, aloe (cut a leaf off, smear from inside onto skin, good for minor burns)
Take what you fancy.
They are pretty hardy (had to be as I am no expert!).
A couple have become top heavy, so best to repot those in more compost/ bigger pot - I have some plastic pots too, if you want.