A sink is an important part of your bathroom, not only functionally, but also in terms of beauty. Remember that it was hard to find bathroom sinks other than the stereotypical white, round sink. But today thanks to the market, we have endless options and models. Think about your needs, style, space and materials you want. We are sure that you will find the exact one you want.
If you are thinking of buying a sink for a guest bathroom, which will be used occasionally, a simple staff would be satisfactory. But if it is a master bathroom, you should be more careful. And 2 sinks could be considered for use by two at the same time.
It is not an obligatory to keep your sink style in accordance with the rest of bathroom. But anyway, harmony seems always nice. You can go with something complementary to complete the theme in your bathroom. According to your taste you can use asymmetrical, round, oval or rectangle designs.
Pay attention that the sink should be deep a little bit; it would decrease the risk that the water would splash out. Copper, bronze, enameled steel can be considered as materials.