We registered at both Bed Bath & Beyond and REI! We’ve been together for almost 10 years, lived together for 6, so we opted to add home goods and kitchenware that almost served as a replacement to stuff we’ve had for years (e.g. wine glass sets, sheets, towels, pots, pans, etc.). We live in CO and love the outdoors so we also added a few items for camping/hiking, just for fun.
There are tons of “starter” wedding registry checklists online, so if you’re struggling with deciding what to add, I suggest starting with those to get some inspiration on what you want/need, and then go from there!