I have 3c hair in the back and 3b in the front. What products should I use?
Don't worry about the different hair types. Just experiment with products that other 3bs like and it will likely work just fine on your whole head. AG Re:coil is one to try, as is Design Essentials Natural Curl Enhancing Mousse.
My friend who's a 3b likes Kinky Curly Curling Custard. http://www.naturallycurly.com/curlproducts/view/2804/kinky-curly-curling-custard
The curl pattern doesn't matter, your hair properties do. Base products on your porosity, density, thickness, etc. To even out the curl patterns, you could try scrunching the front, and smoothing down the back. It's not gonna work miracles, but it may help. "Multiple hair type acceptance" is key haha
I have simular hair to you and Shea Moisture works really well for me