Amazon.com : Kinekt Bike Suspension Seatpost, LR Lightweight Alloy Seat Post for Road, Gravel & Electric Bikes, Bike Seat Shock Absorber Adjusts to Weight and Riding Style, Quick & Easy Set-up, LR
SATORI SOLO Bicycle Suspension Seat Post 27.2/28.6/30.4/30.8/31.6/31.8/33.9mm Mountain Bike Seatpost Shock Absorber Travel 40mm - AliExpress
Amazon.com : REDSHIFT ShockStop Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes, 27.2mm x 280mm : Sports & Outdoors
Here Are The Best Suspension Seatposts For Touring & Bikepacking - CYCLINGABOUT