The cookies always have the best items! I love the Sanrio ones, and Sherb’s and Stella’s sleepy ones (can’t remember the names lol) are some other standouts
I don't play the game all that much anymore but the furniture items are great! My favorites are from Sherb's nap cookie, Lily's hydrangea cookie, Piper's sunbeam cookie and Lolly's celestial cookie. All of the Sanrio cookies are cute too, but most of their furniture is recycled from New Leaf RVs.
I love most if not all of the fortune cookies. The more handheld items and animal items, the better! My favorite would have to be Purrl's Calico Cookie since I have a calico cat.
I also really love Twiggy's Chirpy Cookie, Flora's Resort Cookie, Ione's Starry Cookie, and Olive's Toadstool Cookie.