I dunno about quickly but I bursted on wind cirrus in south island. In one nite get couple stacks paper grass. Lucky I'm a pack rat and saved all. Still got some left over. I guess I'll sell them $.$

Another place to get them in drops is dragon flies if not strong enough for wind cirrus. Or another option is to compound grass base item for example vine grass with poop till you get paper grass. If you train in pine forest you get stacks upon stacks of vine grass to compound so there is plenty to compound.

If desperate buy from other player lol.