I have a small closet dedicated to my scarves, with a moth protective product that doesn't smell much. I don't bother using lavender or other less lethal products, I had a moth disaster last year in my sweater closet, and now it is WAR!
I use large rectangular wicker baskets lined in cotton. Two of them are for twills/pochettes, two for CSGM, one for moussies, a couple more for various formats. I roll every scarf/shawl Marie Kondo style after use, it makes it easy to see many of them at once and you can fit lots in a small space. I put plisses in 4" diameter cylindrical plastic containers with lids, they stay perfectly rolled that way, it really extends the life of the pleats.