Do succulents like to be crowded? Should succulents be planted close together?
It depends on the type and size of the succulents. Succulents in general don’t mind being crowded and can grow tight in their pots for a while.  The ones that do best planted close together stay on the smaller side and/or are slow growers. Otherwise, you'll have to repot your succulent arrangement into a bigger planter as the plants crowd each other out.