I use microfiber towels made for drying cars. You want towels made for drying because the fiber blend really does make a difference in water absorption.
I alternate between the “gauntlet” The Gauntlet Microfiber Drying Towel | The Rag Company
and the “double twistress” The Double Twistress Microfiber Drying Towel | The Rag Company
Both are super soft and absorb a ton of sweat.