Pure Coconut Oil is the best for hair, though it might seem greasy but its the best for your hair.
If you still want to go in for a non-sticky one, you can try Argan oil but be sure to do a patch test.

You can Use the mamaearth's hairs that is best product for hair and there is no Harmful Chemicals

I like Almond oil ranges or even herbal oils that some local homemakers sell!

Not a very big fan of using hair oils, but as far as I know olive oil can be great for hair!

I have heard about the goodness of herbal oils and extra virgin coconut oil too.  Need to try out then!

Onion juice is good for hair