Make sure your coconut oil is unrefined and cold-pressed.
You should consider switching your shampoo to a sulfate-free shampoo bar. I use this one by Rocky Top. (Don’t be lured in by Lush’s shampoo bars – they all contain sulfates! Although you could try Lush’s R&B leave-in for scrunching.)
Other than that – have a look around Etsy and see what’s available. There’s lots of natural stuff on there in the “bath and beauty” section.