It really depends on your hair, but a pineapple works really well for a lot of curlies. A pineapple is a very loose ponytail on top of your head (it looks like a pineapple). Most people use a scrunchy and just loop it around the hair once so as not to create a crease.
curly hair is extremely fragile and susceptible to breakage, especially when wet!!! Reduce as much damage as possible by leaving it down, putting it in a bun or ponytail will temper with your curl pattern