New to this forum and biking in general. I had a bike fit and was recommended to get a setback seatpost. Based on some research (https://www.cyclingabout.com/seatposts-overlooked-yet-critical-for-cycling-comfort/) it seems like carbon ones are much more comfortable than alloy ones and canyon s13 / ergon cf3 tested as one of the best. Does anyone know where I could find one that performs similarly from a comfort perspective? Is seems like a lot of the 27.2 carbon seatposts on aliexpress like the toseek have the same shape as the canyon.

Also to add I have a aluminum bike with carbon fork (Norco threshold 2018)