U can add candles they are really therapeutic and some cool stuff to put you things in
You can get such stuff online on Amazon and other stores but wouldn't suggest you to check out some offline stores too. The best place for this is Rajouri Garden. There are some shops opposite the main flyover.
Try some stick on mirrors available on amazon, they are in beautiful shapes . Search on amazon for more and also Myntra , Tata , and yes miniso , there are so many more stores like miniso now. Try to grap some baskets for your towels , some beautiful trays for the other stuff. Wishing you all the best , may you achieve what you are thinking about .
Miniso is a great place for all this, or any local market tbh
You can check out miniso. It's available online too on Amazon