I got 8 each of these mats in a charity shop and prefer them to anything else I could find at the time (and haven’t tried to find anything better).
My mother bought a new dark oak table in 1952, it was always covered with a thick felt pad, then a dark chenille tablecloth, a vinyl cloth over that, and finally a snow-white damask linen tablecloth. When my brother took over the house after she died in 2013 he briefly considered either changing the table (and matching sideboard, though the old leather-seated dining chairs had long gone), or using it with mats instead of a cloth. He was three years old when they got the table and after a lifetime of not risking a scratch, he quickly covered it again with multiple protective layers, but with the wipe clean cloth on the top instead of crisp starched linen!
