I swapped my office chair for a kneeling chair and it was surprisingly versatile | Mashable
Amazon.com: Kneeling Chair Ergonomic for Office, Adjustable Stool for Home and Office - Improve Your Posture with an Angled Seat - Thick Moulded Foam Cushions - Brake and Smooth Gliding Casters :
JOMEED Black Adjustable Ergonomic Home Office Kneeling Chair with Angled Fabric Seat UP007 - The Home Depot