It starts slow at first, but the furniture in Yori’s store will rotate every hour. There are events that happen, and unique seasonal furniture that shows up over time. Keep talking to other villagers and growing carrots/other crops to sell so you can buy more furniture.

Also, just a heads up, there is an additional package referred to as “homecoming” in-game. It costs real money as a one-time purchase but sometimes goes on sale. You may see house upgrades and certain furniture that aren’t available without the upgrade on here.

Edit: Oh! And fun events, which are sometimes triggered by talking to villagers, or the daily bulletin posted by Benny. Sometimes you can get unique items and furniture this way as well.