Debra Lee Baldwin wrote a great book on the subject. https://www.amazon.com/Designing-Succulents-Debra-Lee-Baldwin/dp/088192816X/ref=sr_1_3?ie=UTF8&qid=1505412403&sr=8-3&keywords=designing+with+succulents
Should be at your local library or used on Amazon.
Mountain Crest Nursery sells hardy succulents.