Cottage Living gave us the setting; it didn't give us nearly enough stuff. If your sim's aesthetic is linen dresses, a kitchen full of dried herbs, and a garden that looks lived-in rather than landscaped, you burn through the pack's catalog fast. Cottagecore is one of the biggest CC aesthetics in the community, and it shows in the depth available.
The 270+ picks here cover both halves of the aesthetic: CAS (prairie and milkmaid dresses, knit cardigans, braided hair, soft floral everything) and build/buy (farmhouse kitchens, quilted bedding, canned-goods clutter, cottage garden decor). It pairs naturally with the clutter and furniture collections — most cottagecore builds are really clutter-density projects wearing a floral apron.
Everything is Sims 4 only, link-checked, and SFW. Sort by downloads for the staples, or dig into the long tail where single-set creators do some of the best cottage clutter in the community.