i think twists and braids would be a good choice, ive got 3b/c hair with same 3b (now and for same strange reason...). thats what i would try i somtimes do braids but only over night and when im bored hahaha not often, but last time i did it i really saw how much my hair has grown since i last did it.

my hair: 3b, high porosity, high density and coarse hair (i think i finally figured that all out)
my hair loves conditioner only styling!
Oils and my own procuts are my hairs best friend
my hair goal length is bra strap length when curly.