Janpath , Sarojini have many varieties for belts .In this situation you can check online on Myntra, Ajio , H&M . They do have nice collection.
You can buy it from H&M.
They have a wide variety of collection and most of them are in trend.
I have this cute little black belt with a gold and black bow on it. it goes well with everything.
Best part is that seasonal sale in H&M so if you're lucky, you can get it on discount!