I've bought a mat from Aliexpress, in bulk, to cover all the width of the workbench. Dark green, rubber based, so antipiercing, anticutting, heat resistent (can heat and roll a blob of solder on it without any damag, also antistatic, with a grounding bracelet and all the fuss. Well, never used the antistatic things, of course.
In practice I still put a big sheet of white paper, just like before buying the mat, this time on top of the mat.
The white paper gives a much better visibility for parts and tools spread on the bench, and I don't spill solder on the bench anyway. Another downside for the mat is that is has to be swiped to clean, while a a paper can be lifted, then tilt all the scraps into the waste bucket, plus the paper can be tossed away when it becomes too dirty, and you'll have a new clean surface, while a mat will remember forever all the stains and scratches.
My advice is to just lay down some white paper on the bench. Unless you repair boat anchors, no mat is needed. Ese a white sheet of paper. As for a supply of big and thick white paper, use the back side of the pages removed from those large wall-calendars.