Most of us start out with Deva, think we like it and move on to other products. Determining you hair properties will definitely help you and help people on assist you. Here's a link to help: Live Curly Live Free - Home Struttwife's (Tiffany's screen name on ebook is a good investment. Nothing you can't find here, just all of the information in one place.

Once you determine your properties, you can look for folks with hair like yours and see what they use (in signatures) and what they do. My hair prefers the more natural products from the online, boutique companies. My current favorites are in my signature.
3a (Corkicelli), highlighted, fine, low porosity

HGs: Anything Sevi; Curly Kinks Satin Roots, Curlycue ReNew and Coil Jam; homemade FSG and okra gel; soap bars; UFD Curly Magic; Botanical Spirits Jellies, CJ Repair Me, Aloe Fix