Should I rather implement this in an attribute or in the loader code?

I know I can do something like

[SomeAttribute(typeof(SomeClass)]
public class SomeClass {}

From what I know I cannot get the type the attribute is applied to in any other way.

In the end I want to localize a string that is a descriptor of that class. Now I can use a static label to get the localized string from a resource file. I would simply use the type's name for that.

so my Attribute would have some property

public string Name => Properties.SomeNames.ResourceManager.GetString(_type.ToString());

Is this something that should be done in the attribute or in my reflection code that loads the types from an assembly?

I mean it is meta data for the type, so attribute should be a good place but on the other hand if I have to provide the type to the attribute first I don't win much right?

Any technical detail I'm missing or is this just preference?