Id go with a UHMW strip.
It can be found in many sizes and colors at a decent tool store.
Failing that get some old plastic cutting boards and cut them up.
Wood workers use it a lot for reducing friction between wood and machinery.
You could also use stick on ones for the bottoms of furniture.
If all else fails, get out a crayon or candle and wax the heck out of the top surface of the wood supports. Wax the norm for lowering friction on dresser drawers in the past.
