I agree with getting the Brazillian hair (in Body Wave). It comes out really natural. you can go on aliexpress, and look on BHM for vendor reviews.
I don't like bss hair because it is often about $30 cheaper than virgin aliexpress hair, but only lasts through 1-2 uses. But i've had my brazillian body wave for going on 2 years, and I've installed it 4 times.