I have the same hair properties so here are some hair products I've been playing around with.

I wash once a week with Shea moisture sulfate free shampoo (I tried co-washing with suave coconut and vo5 but I was washing every other day due to scalp issues so I switched to the Shea moisture once a week and its been working very well). I use tresseme naturals conditioner for my RI. I've been using Loreal Eversleek conditioner as my only LI but I recently decided that its over conditioning my hair (I use it everyday) and have been using LA looks sports gel instead which I really like. I will say being a fined hair curly has its challenges...it's been an adventure trying to find products that help with frizz but don't weigh my hair down. So I think trial and error is probably your best bet.