I recommend researching about the Curly girl method. It doesn’t use shampoo, but only conditioner to wash your hair. When I first began to wear my hair naturally curly, this certainly helped with my dry hair problem.
Next, if you still need some moisture, try doing some deep condition oil treatments on your hair. Simply saturate your hair in olive oil or coconut oil and leave on for an hour or overnight, then rinse out (for this, you may want to use a shampoo because for some, this is way too much oil to keep in their hair normally).
If you’re on Reddit, there’s a whole community for curly hair at http://www.reddit.com/r/curlyhair/ You can read through and see if there’s people with similar hair as yours and what products they use.
I hope this helps as a great place to start. There’s lots of blogs and communities online, you can surely find your niche to help with your hair. :)