Here Are The Best Suspension Seatposts For Touring & Bikepacking - CyclingAbout.
ShockStop PRO Suspension Seatpost RT – Redshift Sports
Bicycle Damping Suspension Seatpost MTB Bike Seat Post 25.4/27.2/28.6/30/30.4/30.9/31.6/33.9 Shock Absorber Setback Saddle Tube|Bicycle Seat Post| - AliExpress
ZOOM Suspension Seatpost 27.2/31.6mm MTB Road Bike Seatpost Aluminum Road Bike Lady Bike Saddle Tube Bike Parts Damper seatpost|Bicycle Seat Post| - AliExpress