Donut charts are best when you need to show how parts fit into a whole. They work well for a few categories but get cluttered if you add too many. They're not great for detailed comparisons but do well to display broad data trends, like a quick glimpse of market share. The center of a donut chart can be used to highlight key information, making it not only functional but also visually appealing. They're best when simplicity and aesthetics need to meet.
This is an example of a React & D3 donut chart component that you can use.