I layer either Biosilk RHG (my favorite) or Aquage Defining Gel over Aveda Be Curly or Re:coil or Karite Nut Curl Milk. Occasionally I mix in a quarter-sized puddle or so of B & A with either the curl enhancer or the gel, depending on my mood. SiF is my current finishing product.

I love all these products, but again: plopping and diffusing both give me the best curl enhancement.
2b-ish--embracing my waves this summer
Aussie Catch the Wave condish, L'Oreal NutriGloss condish; Nexxus Designing Texxtur Cream, Rusk Radical Creme, Pantene Curl Defining Mousse, Paul Mitchell Sculpting Foam; coconut oil for DTs