Any hip seat carrier which is good ? I only know ergobaby and aimama.

Agree that hipseats are not recommended for young babies as they do not provide enough support for their developing spine. For older babies, it would be very straining on the parent's back due to the poor weight distribution. An ergonomic soft structured carrier would be better. Do join us at Babywearing Singapore if you haven't already :) https://www.facebook.com/groups/babywearingsg/