White is my base color for my Christmas tree ornament, then I would add red ornaments for a festive look or blue for a “Frozen” theme.
9pc Tinsel Ball Christmas Tree Ornament Set White - Wondershop™: Shatter-Resistant Luxury Holiday Decor, Indoor Use
These are so cute. But because they are somewhat small, you have to buy a lot to make them visible in your tree. Good thing is, what ever your motif is, you can add these jewels for enhancements.
12pc Acrylic Diamond Christmas Tree Ornament Set Clear - Wondershop™: Indoor Plastic Holiday Decor, No Choking Hazard