My hair is a combo of 2a/2b/2c with similar attributes as yours. I've found that every time that I do a deep moisturizing treatment, my hair seems to get a little bit curlier.
If your hair is the type that needs protein however, protein treatments often perk up curls too.
2B, normal porosity, elasticity, thickness, texture, moisture loving, protein leery...
CO: Whole Foods Lavender Conditioner
LO: Dessert Essence Coconut, Pure and Basic Clarifying Shampoo
DT: JCDCT, SSDDMT
Style: AOMM, CCCL, KMFUM, KCTT