Some wood fiber plants will buy your waste wood - slabs, sawdust, shavings etc but you probably need a minimum amount, not sure. You'd have to find a local depot.
Stables, dog kennels, animal shelters etc, may also buy sawdust. I know of one guy who mixes it with melted wax, presses it, and sells it for firestarter cubes and bricks.
Or at home it's good for spill absorbing, garden, compost, walking trails. Really good for soil erosion - if you have any skid trails where you stripped the vegetation off, backfilling with sawdust slows down runoff and keeps the mud away.