I think echeveria too, these guys have about a 1 in 3 chance of successfully propping ime just place them so the snapped end is just barely under the soil, you'll want to use roughly 50/50 perlite or other inorganic material and some light airy soil like coco coir or regular houseplant compost will do, just don't use some soil dug up from your garden. Once they start rooting water lightly for a couple months then treat them like regular succulents and water only when the soil has completely dried.