A healthy vagina will smell some which is normal and nothing to worry about.
All woman's vaginas smell different from each other so there's not just one way a healthy vagina should smell like.
But most healthy vaginas have a smell such as Tangy or fermented smell or Coppery smell like a penny smells.
Some woman's vaginas have a smell like sweet molasses.
If your vagina has a slight odor it's normal but if you notice any smell such as a fishy smell then you could have an Urinary Tract Infection or UTI.
If your vagina does smell like fish or you think the odor of your vagina is not normal smelling or you have a really foul or sour smelling vagina and you've kept your vagina pretty clean then you should see a doctor to be safe.
But it's okay if your vagina does have a bad smell to it as long as the vagina smell is not too bad.