Renthal Fatbar 31.8 aluminium
It’s probably around 100g heavier than the ENVE bars (or most carbon bars for that matter) but the smaller clamp diameter and tube butting offer the best trail feel. Plus they are cheaper and won’t explode.
Don’t overlook grips either. A lot of lock-on style grips can transmit a lot of vibration. I’ve found the ESI grips to be the best for vibration damping followed closely by Ergon GE1.